Patents-Review.com
ClassID:

84969 ⎘

C01B33/046 - CPC Classification

Classification description:

Silicon; Compounds thereof; Hydrides of silicon Purification

Recent Application in this class:
#1
20250382186
2025-12-18

SILANE RECOVERY DEVICE AND METHOD

 #2
20210347644
2021-11-11

Purification method of high-purity n-tetrasilane

 #3
20200180966
2020-06-11

Triphenylgermylsilane and trichlorosilyl-trichlorogermane for the production of germanium-silicon layers, and method for the production thereof from trichlorosilyl-triphenylgermane

 #4
20200115243
2020-04-16

Process for producing isomer enriched higher silanes

 #5
20200115242
2020-04-16

Process for producing isomer enriched higher silanes

 #6
20200115241
2020-04-16

PROCESS FOR PRODUCING ISOMER ENRICHED HIGHER SILANES

 #7
20200115240
2020-04-16

Process for producing liquid polysilanes and isomer enriched higher silanes

 #8
20200115238
2020-04-16

PROCESS FOR PRODUCING ISOMER ENRICHED HIGHER SILANES

 #9
20190276321
2019-09-12

METHOD FOR PRODUCING OLIGOSILANE AND APPARATUS FOR PRODUCING OLIGOSILANE

 #10
20180370807
2018-12-27

Method of making aluminum-free neopentasilane

 #11
20180117557
2018-05-03

Column and process for disproportionation of chlorosilanes into monosilane and tetrachlorosilane and plant for production of monosilane

 #12
20170313591
2017-11-02

Polymerization Inhibitor for Silane

 #13
20170297916
2017-10-19

DISTILLATION PROCESS

 #14
20170158518
2017-06-08

Cyclohexasilane

 #15
20160279628
2016-09-29

Method for purifying silane compound or chlorosilane compound, method for producing polycrystalline silicon, and method for regenerating weakly basic ion-exchange resin

 #16
20160046493
2016-02-18

Method for the preparation of silanes

 #17
20150078980
2015-03-19

Method and apparatus for producing disilane through pyrolysis of monosilane

 #18
20150075969
2015-03-19

Processes and systems for purifying silane

 #19
20150004089
2015-01-01

Process for making trisilylamine

 #20
20140219893
2014-08-07

Method for producing cyclohexasilane

 #21
20140004029
2014-01-02

Method for reducing the aluminum content of neopentasilane

 #22
20130174605
2013-07-11

Processes and systems for purifying silane

 #23
20130156677
2013-06-20

Process for separating monosilane from chlorosilanes-rich mixture

 #24
20130133519
2013-05-30

Removal of impurities from hydrogen-containing materials

 #25
20120226064
2012-09-06

Method for producing monosilane and tetraalkoxysilane

 #26
20120193214
2012-08-02

Process for purifying chlorosilanes by distillation

 #27
20110268642
2011-11-03

Process for purifying low molecular weight hydridosilanes

 #28
20110189073
2011-08-04

Process for purification of monosilane

 #29
20110011129
2011-01-20

METHOD FOR RECYCLING SILANE (SiH4)

 #30
20100266489
2010-10-21

REMOVAL OF FOREIGN METALS FROM INORGANIC SILANES

 #31
20090282975
2009-11-19

Removal of impurities from hydrogen-containing materials

 #32
20090226355
2009-09-10

METHODS OF FORMING HYDROGENATED METALLOID COMPOSITIONS VIA POLYMERIZATION

 #33
20080175784
2008-07-24

Method for producing a high purity trisilane product from the pyrolysis of disilane

 #34
20050120877
2005-06-09

Purification of hydride gases

 #35
16567559
2020-05-12

High efficiency synthesis and purification recycling system of higher silane