Patents-Review.com
ClassID:

84965 ⎘

C01B33/037 - CPC Classification

Classification description:

Silicon; Compounds thereof; Silicon Purification

Sub-classes:
Recent Application in this class:
#1
20260078008
2026-03-19

PRODUCTION OF SILICON PARTICLES HAVING A REDUCED SURFACE METAL CONTENT

 #2
20260035251
2026-02-05

CRUSHED POLYCRYSTALLINE SILICON LUMPS AND METHOD FOR PRODUCING SAME

 #3
20250382185
2025-12-18

REMOVAL OF BORON AND TITANIUM FROM SILICON

 #4
20250015259
2025-01-09

PROCESS FOR PRODUCING SILICON-CONTAINING MATERIALS

 #5
20250003054
2025-01-02

SOLAR HEATING FOR THIN FILM EVAPORATION AND DIRECTIONAL SOLIDIFICATION

 #6
20240400398
2024-12-05

METHOD OF RECYCLING SILICON WASTEWATER AND METHOD OF MANUFACTURING SEMICONDUCTOR BY USING THE SAME

 #7
20240332038
2024-10-03

CLEANING BASKET

 #8
20240308857
2024-09-19

APPARATUS AND METHOD FOR PRODUCING 3N OR HIGHER PURITY SILICON BY PURIFYING 2N PURITY SILICON

 #9
20240250253
2024-07-25

Apparatus for producing guest-free silicon clathrate

 #10
20240208829
2024-06-27

METHOD FOR OBTAINING PURIFIED SILICON METAL

 #11
20230373794
2023-11-23

BULK CRYSTALLINE 4H-SILICON THROUGH A METASTABLE ALLOTROPIC TRANSITION

 #12
20230348282
2023-11-02

Method for removing phosphorus and boron impurity from industrial silicon melt by secondary refining

 #13
20230323866
2023-10-12

Carbon negative clean fuel production system

 #14
20230294996
2023-09-21

CRUSHED POLYCRYSTALLINE SILICON LUMPS AND METHOD FOR PRODUCING SAME

 #15
20230202847
2023-06-29

SUPERHARD CONSTRUCTIONS AND METHODS OF MAKING SAME

 #16
20230174382
2023-06-08

Method, Apparatus, and System for Producing Silicon-Containing Product by Utilizing Silicon Mud Byproduct of Cutting Silicon Material with Diamond Wire

 #17
20230142512
2023-05-11

METHOD FOR MANUFACTURING POROUS SILICON AND SECONDARY BATTERY ANODE ACTIVE MATERIAL CONTAINING SAME

 #18
20230136895
2023-05-04

Methods of recycling silicon swarf into electronic grade polysilicon or metallurgical-grade silicon

 #19
20230124413
2023-04-20

Etching device for silicon core wire and etching method for silicon core wire

 #20
20220393159
2022-12-08

Method of producing guest-free silicon clathrate, apparatus for producing guest-free silicon clathrate

 #21
20220219994
2022-07-14

METHOD FOR REFINING CRUDE SILICON MELTS USING A PARTICULATE MEDIATOR

 #22
20220212937
2022-07-07

METHOD FOR REFINING CRUDE SILICON MELTS USING A PARTICULATE MEDIATOR

 #23
20220169519
2022-06-02

Method for producing technical silicon

 #24
20220162078
2022-05-26

Method for producing technical silicon

 #25
20220073361
2022-03-10

COUPLED PRODUCTION OF HIGH PURITY SILICON AND ALUMINA

 #26
20210316996
2021-10-14

Systems and methods for producing high-purity fine powders

 #27
20210284541
2021-09-16

Silicon Fine Particles and Method for Producing the Same

 #28
20210254606
2021-08-19

Carbon negative clean fuel production system

 #29
20210253435
2021-08-19

Treatment process for recycling silicon ingot cutting waste

 #30
20210246036
2021-08-12

METHOD FOR PRODUCING ELEMENTAL SILICON

 #31
20210167360
2021-06-03

Processes to fabricate porous silicon and its use as feedstock for secondary battery electrodes

 #32
20210114885
2021-04-22

Method and apparatus for removal of surface carbon from polysilicon

 #33
20210114884
2021-04-22

Crushed polycrystalline silicon lumps and method for producing same

 #34
20210107799
2021-04-15

System and method for producing silicon-containing product by utilizing silicon mud byproduct of cutting silicon material with diamond wire

 #35
20210104643
2021-04-08

Methods of recycling silicon swarf into electronic grade polysilicon or metallurgical-grade silicon

 #36
20210087066
2021-03-25

Method of classifying metallurgical silicon

 #37
20210066714
2021-03-04

Production method for producing silicon clathrate II

 #38
20210024858
2021-01-28

Washing method, manufacturing method, and washing device for polycrystalline silicon

 #39
20200393198
2020-12-17

Hood for Si-metal tapping

 #40
20200377370
2020-12-03

SYSTEMS AND METHODS FOR PRODUCING HIGH-PURITY FINE POWDERS

 #41
20200363129
2020-11-19

Method for treating pourable, inorganic grain, and rotary tube suitable for performing the method

 #42
20200189919
2020-06-18

METHOD FOR RECYCLING SUB-MICRON SI-PARTICLES FROM A SI WAFER PRODUCTION PROCESS

 #43
20200095131
2020-03-26

Process for the production of commercial grade silicon

 #44
20200095130
2020-03-26

AMORPHOUS SILICA, DEVICE FOR PRODUCING AMORPHOUS SILICA, METHOD FOR PRODUCING AMORPHOUS SILICA, SILICON PRODUCED FROM AMORPHOUS SILICA, AND METHOD FOR PRODUCING SILICON

 #45
20200044245
2020-02-06

Silicon powder for use in anodes for lithium-ion batteries and method for production of silicon powder

 #46
20190322533
2019-10-24

PROCESS FOR PRODUCING SILICON INGOT BY SMELTING SILICON POWDER

 #47
20190119829
2019-04-25

Polycrystalline silicon rod and method for producing single crystal silicon

 #48
20190084835
2019-03-21

Method of purifying aluminum and use of purified aluminum to purify silicon

 #49
20190060990
2019-02-28

DIRECTIONAL SOLIDIFICATION METHOD AND SYSTEM

 #50
20180370806
2018-12-27

Purified Silicon, Devices and Systems for Producing Same

 #51
20180339908
2018-11-29

Process for producing polycrystalline silicon mass

 #52
20180291477
2018-10-11

Recovery of valuable or toxic metals from silicon solar cells

 #53
20180213603
2018-07-26

SEGMENTED TUBES USED IN ANNEALING OF HIGH PURITY SILICON GRANULES

 #54
20180208472
2018-07-26

CONTROL OF SILICON OXIDE OFF-GAS TO PREVENT FOULING OF GRANULAR SILICON ANNEALING SYSTEM

 #55
20180208471
2018-07-26

System for reducing agglomeration during annealing of flowable, finely divided solids

 #56
20180208470
2018-07-26

METHOD FOR ANNEALING GRANULAR SILICON WITH AGGLOMERATION CONTROL

 #57
20180175380
2018-06-21

Negative electrode active material for secondary battery and preparing method thereof

 #58
20180104720
2018-04-19

Apparatus and method for classifying and dedusting granular polysilicon

 #59
20180086644
2018-03-29

Method for deinstallation of rod pairs of polysilicon produced by the Siemens process

 #60
20180016151
2018-01-18

Purified silicon, devices and systems for producing same

 #61
20170361292
2017-12-21

System for producing high-purity granular silicon

 #62
20170276582
2017-09-28

Method of determining a concentration of a material not dissolved by silicon etchants contaminating a product

 #63
20170197841
2017-07-13

Purified silicon, devices and systems for producing same

 #64
20170197840
2017-07-13

Purified silicon, devices and systems for producing same

 #65
20170101319
2017-04-13

RECOVERY OF SILICON VALUE FROM KERF SILICON WASTE

 #66
20170057831
2017-03-02

FLUX COMPOSITION USEFUL IN DIRECTIONAL SOLIDIFICATION FOR PURIFYING SILICON

 #67
20160236941
2016-08-18

PROCESS FOR DEOXIDIZING SILICON

 #68
20160060772
2016-03-03

System and method for purification of electrolytic salt

 #69
20160052790
2016-02-25

Chunk polycrystalline silicon and process for cleaning polycrystalline silicon chunks

 #70
20150376017
2015-12-31

Method for purifying silicon

 #71
20150376016
2015-12-31

Rapid reduction of sodium occupancy in type II silicon clathrate by chemical etching

 #72
20150368114
2015-12-24

Flux composition useful in directional solidification for purifying silicon

 #73
20150360960
2015-12-17

Cover flux and method for silicon purification

 #74
20150336802
2015-11-26

METHOD OF PURIFYING SILICON

 #75
20150225247
2015-08-13

REACTIVE COVER GLASS OVER MOLTEN SILICON DURING DIRECTIONAL SOLIDIFICATION

 #76
20150225246
2015-08-13

Method and apparatus for consolidation of granular silicon and measuring non-metals content

 #77
20150184311
2015-07-02

LINING FOR SURFACES OF A REFRACTORY CRUCIBLE FOR PURIFICATION OF SILICON MELT AND METHOD OF PURIFICATION OF THE SILICON MELT USING THAT CRUCIBLE(S) FOR MELTING AND FURTHER DIRECTIONAL SOLIDIFICATION

 #78
20150183055
2015-07-02

Laser conversion of high purity silicon powder to densified granular forms

 #79
20150175431
2015-06-25

METHOD TO PURIFY ALUMINUM AND USE OF PURIFIED ALUMINUM TO PURIFY SILICON

 #80
20150158731
2015-06-11

LINING FOR SURFACES OF A REFRACTORY CRUCIBLE FOR PURIFICATION OF SILICON MELT AND METHOD OF PURIFICATION OF THE SILICON MELT USING THAT CRUCIBLE

 #81
20150135770
2015-05-21

Method for producing silicon for solar cells by metallurgical refining process

 #82
20150128764
2015-05-14

Silicon purification mold and method

 #83
20150075994
2015-03-19

System and method for electrorefining of silicon

 #84
20150075559
2015-03-19

Method for purifying polycrystalline silicon

 #85
20150075223
2015-03-19

SILICON PURIFICATION APPARATUS AND SILICON PURIFICATION METHOD

 #86
20150072240
2015-03-12

Porous silicon-based particles, method of preparing the same, and lithium secondary battery including the porous silicon-based particles

 #87
20150068885
2015-03-12

Silicon refining equipment and method for refining silicon

 #88
20150053236
2015-02-26

Rinsing apparatus and rinsing method for polycrystalline silicon lump

 #89
20150047556
2015-02-19

Method for Purifying Silicon

 #90
20150033798
2015-02-05

Silicon refining device

 #91
20150028268
2015-01-29

Method for manufacturing highly pure silicon, highly pure silicon obtained by this method, and silicon raw material for manufacturing highly pure silicon

 #92
20150000342
2015-01-01

PROCESS AND DEVICE FOR PURIFYING SILICON

 #93
20140338587
2014-11-20

METHOD FOR PURIFYING SILICON

 #94
20140250950
2014-09-11

Purification of silicon by electric induction melting and directional partial cooling of the melt

 #95
20140178286
2014-06-26

Method for manufacturing silicon blocks

 #96
20140075997
2014-03-20

SILICON PURIFICATION METHOD AND SILICON PURIFICATION DEVICE

 #97
20140037959
2014-02-06

Polycrystalline silicon chunks and method for producing them

 #98
20140027430
2014-01-30

Melting apparatus

 #99
20130341622
2013-12-26

Polycrystalline silicon wafer

 #100
20130337186
2013-12-19

Method for producing high-purity granular silicon

 #101
20130336845
2013-12-19

Reactor for producing high-purity granular silicon

 #102
20130302612
2013-11-14

System and method for production of high purity silicon solids and solids therefrom

 #103
20130291596
2013-11-07

Apparatus for manufacturing polysilicon based electron-beam melting using dummy bar and method of manufacturing polysilicon using the same

 #104
20130291595
2013-11-07

Apparatus for manufacturing high purity polysilicon using electron-beam melting and method of manufacturing high purity polysilicon using the same

 #105
20130277201
2013-10-24

Method for separating and recovering silicon from silicon sludge

 #106
20130247620
2013-09-26

SILICON REFINING DEVICE AND SILICON REFINING METHOD

 #107
20130216466
2013-08-22

Chunk polycrystalline silicon and process for cleaning polycrystalline silicon chunks

 #108
20130189176
2013-07-25

Low-dopant polycrystalline silicon chunk

 #109
20130171052
2013-07-04

Process for removing nonmetallic impurities from metallurgical silicon

 #110
20130102102
2013-04-25

VACUUM RECYCLING APPARATUS AND METHOD FOR REFINING SOLAR GRADE POLYSILICON

 #111
20130047670
2013-02-28

Purification of a metalloid by consumable electrode vacuum arc remelt process

 #112
20130028825
2013-01-31

MANUFACTURING METHOD FOR POLYCRYSTALLINE SILICON INGOT, AND POLYCRYSTALLINE SILICON INGOT

 #113
20130025625
2013-01-31

Process for cleaning polycrystalline silicon chunks

 #114
20130017140
2013-01-17

Method for processing silicon powder to obtain silicon crystals

 #115
20130011320
2013-01-10

METHOD FOR PURIFYING SILICON

 #116
20130008372
2013-01-10

METHOD FOR PURIFYING SILICON

 #117
20120329194
2012-12-27

Method for heat-treating a silicon substrate for the production of photovoltaic cells, and photovoltaic cell production method

 #118
20120321541
2012-12-20

Methods for Refining Aluminum-Containing Silicon

 #119
20120304931
2012-12-06

Carbon-Based Containment System

 #120
20120304699
2012-12-06

PROCESS FOR COARSE DECARBURIZATION OF A SILICON MELT

 #121
20120302043
2012-11-29

PROCESS FOR DECARBURIZATION OF A SILICON MELT

 #122
20120297832
2012-11-29

SILICON VACUUM MELTING METHOD

 #123
20120292825
2012-11-22

Apparatus for manufacturing silicon substrate for solar cell using continuous casting and having contacting solidification and stress relieving regions

 #124
20120279440
2012-11-08

Methods for purifying metallurgical silicon

 #125
20120279439
2012-11-08

Method and apparatus for purifying metallurgical silicon for solar cells

 #126
20120275985
2012-11-01

Method for purifying metallurgical silicon for solar cells

 #127
20120260850
2012-10-18

Method of purifying silicon utilizing cascading process

 #128
20120255485
2012-10-11

METHOD FOR PURIFYING SILICON

 #129
20120251425
2012-10-04

Cascading purification

 #130
20120231186
2012-09-13

ROTATIONAL CASTING PROCESS

 #131
20120227808
2012-09-13

PROCESS FOR PRODUCTION OF SILICON POWDER, MULTI-CRYSTAL-TYPE SOLAR CELL PANEL, AND PROCESS FOR PRODUCTION OF THE SOLAR CELL PANEL

 #132
20120227472
2012-09-13

Method of determining an amount of impurities that a contaminating material contributes to high purity silicon

 #133
20120216572
2012-08-30

METHOD AND APPARATUS FOR REMOVING PHOSPHORUS AND BORON FROM POLYSILICON BY CONTINUOUSLY SMELTING

 #134
20120193214
2012-08-02

Process for purifying chlorosilanes by distillation

 #135
20120181164
2012-07-19

Silicon purification method and silicon purification device

 #136
20120178036
2012-07-12

LOW PRESSURE DEVICE FOR MELTING AND PURIFYING SILICON AND MELTING/PURIFYING/SOLIDIFYING METHOD

 #137
20120175613
2012-07-12

POLYCRYSTALLINE SILICON MASS AND PROCESS FOR PRODUCING POLYCRYSTALLINE SILICON MASS

 #138
20120171101
2012-07-05

Recycling and Treatment Method of Waste Liquid in Cutting Mono Silicon

 #139
20120164055
2012-06-28

METHOD OF REMOVAL OF IMPURITIES FROM SILICON

 #140
20120164054
2012-06-28

Impurity Reducing Process and Purified Material

 #141
20120159993
2012-06-28

FEEDSTOCK MELTING AND CASTING SYSTEM AND PROCESS

 #142
20120132034
2012-05-31

PROCESS FOR PRODUCING REFINED METAL OR METALLOID

 #143
20120111263
2012-05-10

METHOD FOR THE DETERMINATION OF IMPURITIES IN SILICON

 #144
20120103020
2012-05-03

APPARATUS FOR REFINING SILICON AND METHOD FOR REFINING SILICON

 #145
20120100058
2012-04-26

Process for producing silicon, silicon, and panel for solar cells

 #146
20120097653
2012-04-26

Laser Refining Apparatus and Laser Refining Method

 #147
20120097523
2012-04-26

METHOD AND SYSTEM FOR PURIFYING SILICON

 #148
20120090984
2012-04-19

METHOD AND APPARATUS FOR PURIFYING A SILICON FEEDSTOCK

 #149
20120067540
2012-03-22

Directional solidification system and method

 #150
20120060562
2012-03-15

METHOD FOR PRODUCING THIN SILICON RODS

 #151
20120052297
2012-03-01

Polycrystalline silicon and method for production thereof

 #152
20120034147
2012-02-09

METHOD FOR CLEANING SILICON SLUDGE

 #153
20120020865
2012-01-26

Method and apparatus for purifying metallurgical silicon for solar cells

 #154
20110306187
2011-12-15

METHOD AND APPARATUS FOR SILICON REFINEMENT

 #155
20110305619
2011-12-15

Silicon Containing Halogenide, Method for Producing the Same, and Use of the Same

 #156
20110302963
2011-12-15

Method for the production of solar grade silicon

 #157
20110293500
2011-12-01

Apparatus and process for treatment for immiscible liquids

 #158
20110280784
2011-11-17

Methods for casting by a float process and associated apparatuses

 #159
20110262337
2011-10-27

MEHTOD FOR ELIMIINATING BORON IMPURITIES IN METALLURGICAL SILICON

 #160
20110256047
2011-10-20

Cascading purification

 #161
20110253177
2011-10-20

Method of washing polycrystalline silicon, apparatus for washing polycrystalline silicon, and method of producing polycrystalline silicon

 #162
20110250118
2011-10-13

Method for producing high purity silicon

 #163
20110247364
2011-10-13

PROCESS FOR PRODUCING MULTICRYSTALLINE SILICON INGOTS BY THE INDUCTION METHOD AND APPARATUS FOR CARRYING OUT THE SAME

 #164
20110236292
2011-09-29

Clean bench and method of producing raw material for single crystal silicon

 #165
20110236290
2011-09-29

Method for processing silicon powder to obtain silicon crystals

 #166
20110233478
2011-09-29

SILICON FOR N-TYPE SOLAR CELLS AND A METHOD OF PRODUCING PHOSPHORUS-DOPED SILICON

 #167
20110229399
2011-09-22

Method for the production of polycrystalline silicon

 #168
20110217225
2011-09-08

Method and apparatus for refining metallurgical grade silicon to produce solar grade silicon

 #169
20110212011
2011-09-01

Reactor and method for producing high-purity granular silicon

 #170
20110206592
2011-08-25

Low cost routes to high purity silicon and derivatives thereof

 #171
20110206591
2011-08-25

Plasma processes for producing silanes and derivatives thereof

 #172
20110200514
2011-08-18

Method for purifying metallurgical silicon for solar cells

 #173
20110198336
2011-08-18

Apparatus for purifying metallurgical silicon for solar cells

 #174
20110198214
2011-08-18

MESOPOROUS SILICA FILM AND PROCESS FOR PRODUCTION THEREOF

 #175
20110186111
2011-08-04

Photovoltaic module including integrated photovoltaic cells

 #176
20110186087
2011-08-04

PROCESS FOR PURIFYING POLYCRYSTALLINE SILICON

 #177
20110177626
2011-07-21

Method Of Determining An Amount of Impurities That A Contaminating Material Contributes To High Purity Silicon And Furnace For Treating High Purity Silicon

 #178
20110167961
2011-07-14

METHOD FOR PURIFYING MATERIAL CONTAINING METALLOID ELEMENT OR METAL ELEMENT AS MAIN COMPONENT

 #179
20110147979
2011-06-23

METHOD FOR PURIFICATION AND COMPACTION OF FEEDSTOCK FOR PHOTOVOLTAIC APPLICATIONS

 #180
20110142724
2011-06-16

System for refining UMG Si using steam plasma torch

 #181
20110135559
2011-06-09

Silicon purification method

 #182
20110132142
2011-06-09

Silicon purification method

 #183
20110129405
2011-06-02

METHOD FOR PURIFYING SILICON

 #184
20110126670
2011-06-02

Method for refining metal

 #185
20110120506
2011-05-26

Apparatus and method for washing polycrystalline silicon

 #186
20110120365
2011-05-26

PROCESS FOR REMOVAL OF CONTAMINANTS FROM A MELT OF NON-FERROUS METALS AND APPARATUS FOR GROWING HIGH PURITY SILICON CRYSTALS

 #187
20110114012
2011-05-19

Methods for purifying metallurgical silicon

 #188
20110104036
2011-05-05

METHOD AND APPARATUS FOR PURIFYING METALLURGICAL GRADE SILICON BY DIRECTIONAL SOLIDIFICATION AND FOR OBTAINING SILICON INGOTS FOR PHOTOVOLTAIC USE

 #189
20110097256
2011-04-28

METHOD FOR PREPARING HIGH-PURITY METALLURGICAL-GRADE SILICON

 #190
20110081289
2011-04-07

Method for regenerating silicon from silicon waste and silicon manufactured using the same

 #191
20110048455
2011-03-03

Rinsing apparatus and rinsing method for polycrystalline silicon lump

 #192
20110044877
2011-02-24

Method of purifying silicon utilizing cascading process

 #193
20110038779
2011-02-17

Multi-stage system for reaction and melt coalescence and separation

 #194
20110005917
2011-01-13

Method for purifying silicon for photovoltaic applications

 #195
20100329959
2010-12-30

Use of acid washing to provide purified silicon crystals

 #196
20100327890
2010-12-30

Quality control process for UMG-SI feedstock

 #197
20100310445
2010-12-09

Process Control For UMG-Si Material Purification

 #198
20100300495
2010-12-02

METHOD FOR PURIFYING POLYCRYSTALLINE SILICON

 #199
20100284885
2010-11-11

Recovery Of Silicon And Silicon Carbide Powder From Kerf Loss Slurry Using Particle Phase-Transfer Method

 #200
20100278707
2010-11-04

Method for recovering silicon from sawing waste

 #201
20100254879
2010-10-07

Method for removing phosphorous and boron from aluminium silicon alloy for use in purifying silicon

 #202
20100254878
2010-10-07

PROCESS FOR WINNING PURE SILICON

 #203
20100239484
2010-09-23

Method for Refining Solar Grade (SoG) Silicon by Using Physical Metallurgy

 #204
20100233064
2010-09-16

Method for purifying silicon

 #205
20100233063
2010-09-16

METHOD FOR MANUFACTURING HIGH-PURITY SILICON MATERIAL

 #206
20100215561
2010-08-26

Recovery method of silicon slurry

 #207
20100213299
2010-08-26

Method for recovering and/or recycling material

 #208
20100202955
2010-08-12

Method for producing Si bulk polycrystal ingot

 #209
20100202954
2010-08-12

METHOD FOR MANUFACTURING OF SILICON, SILICON, AND SOLAR CELL

 #210
20100189622
2010-07-29

Recovery method of silicon slurry

 #211
20100178195
2010-07-15

METHOD OF SOLIDIFYING METALLIC SILICON

 #212
20100170653
2010-07-08

SOLIDIFICATION OF MOLTEN MATERIAL OVER A MOVING BED OF DIVIDED SOLID MATERIAL

 #213
20100135889
2010-06-03

Purification of materials non-electrically conductive in the solid state and electrically conductive in the molten state with electric induction power

 #214
20100135888
2010-06-03

Purification of silicon by electric induction melting and directional partial cooling of the melt

 #215
20100132746
2010-06-03

Apparatus and method for washing polycrystalline silicon

 #216
20100124527
2010-05-20

System and method for production of high purity silicon solids and solids therefrom

 #217
20100108642
2010-05-06

METHOD FOR REMOVING FINE-GRAIN SILICON MATERIAL FROM GROUND SILICON MATERIAL AND APPARATUS FOR CARRYING OUT THE METHOD

 #218
20100068115
2010-03-18

SILICON RECLAMATION APPARATUS AND METHOD OF RECLAIMING SILICON

 #219
20100061913
2010-03-11

Method to convert waste silicon to high purity silicon

 #220
20100061911
2010-03-11

METHOD TO CONVERT SILICON POWDER TO HIGH PURITY POLYSILICON THROUGH INTERMEDIATE SiF4

 #221
20100055020
2010-03-04

Apparatus and Method for a Crucible Design and Tipping Mechanism for Silicon Casting

 #222
20100050686
2010-03-04

Melt purification and delivery system

 #223
20100041175
2010-02-18

Method of purifying a crystalline silicon substrate and process for producing a photovoltaic cell

 #224
20100040526
2010-02-18

Device and method for the processing of non-ferrous metals

 #225
20100032630
2010-02-11

Recovery of silicon from kerf silicon waste

 #226
20100024882
2010-02-04

Process for the Production of Si by Reduction of SiHCl3 with Liquid Zn

 #227
20100015028
2010-01-21

PURIFICATION METHOD

 #228
20100003183
2010-01-07

Method of purifying metallurgical silicon by directional solidification

 #229
20090311161
2009-12-17

Method and configuration for melting silicon

 #230
20090297425
2009-12-03

Metallic silicon and method for manufacturing the same

 #231
20090280049
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