ClassID:

85034

C01B33/193 - CPC Classification

Classification description:

Silicon; Compounds thereof; Silicon oxides; Hydrates thereof; Silica; Hydrates thereof, e.g. lepidoic silicic acid; Preparation of finely divided silica neither in sol nor in gel form; After-treatment thereof by acidic treatment of silicates of aqueous solutions of silicates

Recent Application in this class:
#1
20260097968
2026-04-09

HIGH-EFFICIENCY SHORT-PROCESS PRODUCTION METHOD AND PRODUCTION SYSTEM FOR CARBONIZED SILICA

#2
20260070796
2026-03-12

METHOD OF MANUFACTURING INORGANIC OXIDE NANOFIBER, AND NANOSTRUCTURE

#3
20260028235
2026-01-29

NANO-FREE SILICA PARTICLES AND PREPARATION METHOD THEREFOR

#4
20250382187
2025-12-18

Process for Producing a Precipitated Silica Containing Manganese from Plant Ashes, Precipitated Silica and Its Use in Tire Applications

#5
20250340445
2025-11-06

SILICA PARTICLE MATERIAL AND METHOD FOR PRODUCING SAME, AND ORGANIC MATERIAL COMPOSITION

#6
20250270098
2025-08-28

SPHERICAL, LOW SURFACE AREA PRECIPITATED SILICAS AS MATTING AGENTS IN POWDER COATINGS

#7
20250250177
2025-08-07

PREPARATION METHOD FOR SILICON DIOXIDE, AND TOOTHPASTE

#8
20250186315
2025-06-12

AMORPHOUS SILICA PARTICLE, PREPARATION METHOD AND USE THEREOF

#9
20250162887
2025-05-22

Precipitated Silica and Process for Its Manufacture

#10
20250136455
2025-05-01

SYSTEMS AND PROCESSES FOR THE PREPARATION OF PRECIPITATED SILICA

#11
20250115517
2025-04-10

SILICA SUPPLEMENTARY CEMENTITIOUS MATERIALS

#12
20250059055
2025-02-20

Precipitated Silica and Process for Its Manufacture

#13
20250059054
2025-02-20

PRECIPITATED SILICA AND METHODS THEREOF

#14
20250051173
2025-02-13

Precipitated Silica and Process for Its Manufacture

#15
20250026649
2025-01-23

PRECIPITATED SILICA AND PROCESS FOR ITS MANUFACTURE

#16
20240409418
2024-12-12

PRECIPITATED SILICA, PROCESS FOR PRODUCTION THEREOF AND USE THEREOF

#17
20240391783
2024-11-28

SILICA FOR ORAL CARE COMPOSITIONS

#18
20240383761
2024-11-21

PRECIPITATED SILICA WITH IMPROVED PROCESSING PROPERTIES

#19
20240208830
2024-06-27

METHOD FOR PRODUCING LARGE-DIAMETER SIO2 POWDER, AND COSMETIC COMPOSITION CONTAINING SAME

#20
20240166526
2024-05-23

SILICA-ALUMINA POWDER, METHOD FOR PRODUCING SILICA-ALUMINA POWDER, FLUID CATALYTIC CRACKING CATALYST AND METHOD FOR PRODUCING SAME

#21
20240122818
2024-04-18

LIGHT SCATTERING SILICA PARTICLES AND METHOD FOR PRODUCING LIGHT SCATTERING SILICA PARTICLES

#22
20230391630
2023-12-07

PRECIPITATED SILICIC ACIDS, PROCESS FOR THEIR PREPARATION AND USE THEREOF

#23
20230365419
2023-11-16

Boron-containing amorphous silica powder and method of producing same

#24
20230365418
2023-11-16

AMORPHOUS SILICA-BASED NANOPARTICLES AND METHODS OF MAKING THE SAME

#25
20230286815
2023-09-14

MESOPOROUS SILICA MANUFACTURED IN THE PRESENCE OF WATER-SOLUBLE ODSO

#26
20230257273
2023-08-17

SPHERICAL SILICA PARTICLE, AND METHOD FOR PRODUCING SAME

#27
20230138940
2023-05-04

Method for producing hollow silica particles

#28
20230050728
2023-02-16

METHOD OF MANUFACTURING SILICA MICROSPHERES

#29
20220306480
2022-09-29

Precipitated silica and process for its manufacture

#30
20220204352
2022-06-30

System and method for preparing ultrafine silica by leaching silicate ore using hydrogen chloride gas

#31
20220186036
2022-06-16

STRUCTURAL COLORANTS WITH CARBON

#32
20220177319
2022-06-09

Inorganic porous support and method for producing nucleic acid using same

#33
20220055908
2022-02-24

Silica-based particle dispersion and production method therefor

#34
20220021077
2022-01-20

Uniformly dispersing precipitated silica, process for preparing the same, battery separator including the same, and lead-acid battery including the same

#35
20210387858
2021-12-16

Precipitated silica and process for its manufacture

#36
20210380422
2021-12-09

Porous silica particle composition

#37
20210371289
2021-12-02

Precipitated silica and process for its manufacture

#38
20210309530
2021-10-07

Preparation of precipitated silicas useful as fillers in silicon matrices

#39
20210230008
2021-07-29

SILICA FOR ORAL CARE COMPOSITIONS

#40
20210229067
2021-07-29

Method for preparing high-absorptivity silica as lutein carrier

#41
20210122642
2021-04-29

Process for preparing precipitated silica

#42
20210114889
2021-04-22

Precipitated silica with improved processing properties

#43
20210114888
2021-04-22

HIGHLY DISPERSIBLE PRECIPITATED SILICAS

#44
20210093518
2021-04-01

Preparation of silica-coated calcium carbonates with increased surface area and mesoporosity

#45
20210087068
2021-03-25

Precipitated silica and process for its manufacture

#46
20210047191
2021-02-18

Hydrous silica for rubber-reinforcing filler

#47
20210031172
2021-02-04

Method for obtaining mesoporous silica particles with surface functionalization

#48
20210024755
2021-01-28

Precipitated silica and process for its manufacture

#49
20210024359
2021-01-28

Spherical silica for tubule occlusion

#50
20200377373
2020-12-03

POROUS SILICA PARTICLES

#51
20200283300
2020-09-10

Method for producing hollow silica particles

#52
20200189923
2020-06-18

Precipitated silica and process for its manufacture

#53
20200115246
2020-04-16

Precipitated silica

#54
20200115245
2020-04-16

Process for preparing precipitated silica

#55
20200109056
2020-04-09

Stannous compatible silica

#56
20200102225
2020-04-02

PRECIPITATED SILICA AND PROCESS FOR ITS MANUFACTURE

#57
20200079654
2020-03-12

Precipitated silica and process for its manufacture

#58
20190152790
2019-05-23

METHOD FOR MANUFACTURING ULTRA-POROUS NANO-SIO2

#59
20190084836
2019-03-21

Mesoporous silicas and method for the synthesis thereof

#60
20180297854
2018-10-18

Process for the preparation of silicate and its use for the preparation of precipitated silica

#61
20180251379
2018-09-06

Process for the extraction of silica

#62
20180222758
2018-08-09

Process for the recovery of sodium sulfate

#63
20180222754
2018-08-09

Highly aminated self-assembling functionalized mesoporous silica nanoparticles and method of synthesis

#64
20180141820
2018-05-24

Silica-based spherical particulates and methods of preparing the same

#65
20180127601
2018-05-10

Method for preparing silica nanoparticles

#66
20170312196
2017-11-02

Porous silica particle and cleansing cosmetic

#67
20170240430
2017-08-24

Highly dispersible precipitated silica and method of preparation thereof

#68
20170144890
2017-05-25

GLYCOXY SILANES AS A SOURCE OF SILICA AND SILICATE PRECIPITATES

#69
20170105913
2017-04-20

High Cleaning Silica With Low Abrasion And Method Of Making Same

#70
20170073521
2017-03-16

Process for the preparation of precipitated silicas, precipitated silicas and their uses, in particular for the reinforcement of polymers

#71
20170073238
2017-03-16

PROCESS FOR THE PREPARATION OF PRECIPITATED SILICAS, PRECIPITATED SILICAS AND THEIR USES, IN PARTICULAR FOR THE REINFORCEMENT OF POLYMERS

#72
20170066654
2017-03-09

HIGH-PURITY SILICON DIOXIDE GRANULES FOR QUARTZ GLASS APPLICATIONS AND METHOD FOR PRODUCING SAID GRANULES

#73
20170058111
2017-03-02

Method of preparing precipitated silicas, novel precipitated silicas, and their uses, in particular for reinforcing polymers

#74
20170051154
2017-02-23

Process for the preparation of precipitated silicas, precipitated silicas and their uses, in particular for the reinforcement of polymers

#75
20170051126
2017-02-23

Process for the preparation of precipitated silicas, precipitated silicas and their uses, in particular for the reinforcement of polymers

#76
20170044020
2017-02-16

Method for preparing precipitated silicas, novel precipitated silicas and the uses of same, in particular for reinforcing polymers

#77
20170015807
2017-01-19

Method for preparing precipitated silicas, novel precipitated silicas and uses thereof, particularly for the reinforcement of polymers

#78
20170015562
2017-01-19

Method for preparing precipitated silicas, novel precipitated silicas, and uses thereof, particularly for polymer reinforcement

#79
20160326374
2016-11-10

Silane-modified silicic acid, method for the production and use thereof

#80
20160214865
2016-07-28

Continuous silica production process and silica product prepared from same

#81
20160207785
2016-07-21

Method for the separation of metal ions that are divalent or higher from strong acids or highly acidic media

#82
20150366805
2015-12-24

Porous silica gel as a carrier for liquid technologies

#83
20150266743
2015-09-24

Process for preparing precipitated silica

#84
20150266742
2015-09-24

Process for preparing precipitated silicas

#85
20150252172
2015-09-10

Method for preparing precipitated silicas, novel precipitated silicas and their uses, in particular for strengthening polymers

#86
20150247022
2015-09-03

Method for preparing precipitated silicas, novel precipitated silicas and their uses, in particular for strengthening polymers

#87
20150210826
2015-07-30

Method for preparing precipitated silicas, novel precipitated silicas and their uses, in particular for strengthening polymers

#88
20150210555
2015-07-30

Process for preparing precipitated silicas

#89
20150159239
2015-06-11

Processes for preparing titanium oxide and various other products

#90
20150147469
2015-05-28

Method of producing silica-based particles

#91
20150132577
2015-05-14

Precipitated silica and paper industry/other applications thereof

#92
20150132209
2015-05-14

Process for preparing precipitated silica comprising a membrane concentration step

#93
20150125376
2015-05-07

Production of precipitated silica employing a fast blender

#94
20150110700
2015-04-23

Process for preparing precipitated silica using a mixer or extruder

#95
20150086463
2015-03-26

Continuous silica production process and silica product prepared from same

#96
20150078979
2015-03-19

Process for preparing precipitated silica comprising a step of high temperature spalling

#97
20150073067
2015-03-12

Rubber composition, crosslinked rubber composition and tire

#98
20150056120
2015-02-26

Process for preparing precipitated silica comprising a high compaction step

#99
20150037235
2015-02-05

Process for preparing precipitated silica

#100
20150030519
2015-01-29

Process for preparing precipitated silica

#101
20150030518
2015-01-29

Process for preparing precipitated silica having specific morphology, particle size and porosity

#102
20140336274
2014-11-13

Process for producing inorganic particulate material

#103
20140235435
2014-08-21

Silica spheres and affinity carrier

#104
20140227159
2014-08-14

Particles formed of silica and carbon, and method for producing mixture of silica and carbon

#105
20140140938
2014-05-22

Treated silicas and metal silicates for improved cleaning in dentifrice

#106
20140072634
2014-03-13

Continuous silica production process and silica product prepared from same

#107
20140042359
2014-02-13

Process for preparing aqueous colloidal silica sols of high purity from alkali metal silicate solutions

#108
20140030180
2014-01-30

Manufacture of crystallite particles

#109
20140004306
2014-01-02

Manufacture of structures comprising silicon dioxide on a surface

#110
20130343979
2013-12-26

Highly efficient method for producing ceramic microparticles

#111
20130251616
2013-09-26

Higly dispersible silica for using in rubber

#112
20130228521
2013-09-05

Precipitated silica sorbents and method of separating materials from a fluid stream

#113
20130171051
2013-07-04

Precipitated silica production process

#114
20130165608
2013-06-27

Metal oxide or semimetal oxide spherical beads, a process for making, and a process for using

#115
20130156674
2013-06-20

Method for preparing precipitated silicas containing aluminium

#116
20120329937
2012-12-27

PRECIPITATED SILICA

#117
20120263638
2012-10-18

Method for preparing precipitated silica

#118
20120213686
2012-08-23

Microchannel structure, and methods for producing emulsion and solid spherical particles

#119
20120192762
2012-08-02

Method for producing fine mesoporous silica particles, fine mesoporous silica particles, liquid dispersion of fine mesoporous silica particles, composition containing fine mesoporous silica particles and molded article containing fine mesoporous silica particles

#120
20120094125
2012-04-19

Preparation of precipitated silica from sodium metabisulfite or sodium sulfite

#121
20120041128
2012-02-16

HIGHLY DISPERSIBLE SILICA FOR RUBBERS AND THE PROCESS FOR OBTAINING IT

#122
20120029136
2012-02-02

Hydrophilic silica as filler for silicone rubber formulations

#123
20120010379
2012-01-12

CATALYST CARRIER BASED ON SILICA GEL

#124
20120007023
2012-01-12

Sodium silicate solutions

#125
20110315912
2011-12-29

Thermal insulation material comprising precipitated silica

#126
20110287257
2011-11-24

PRECIPITATED SILICA USED AS REINFORCING FILLER FOR ELASTOMERS

#127
20110277666
2011-11-17

Use of self-assembled nanoporous glass colloids for prolongation of plasticity of polymeric materials

#128
20110263784
2011-10-27

Method of preparing silicas, silicas with specific pore-size and/or particle-size distributions, and the uses thereof, in particular for reinforcing polymers

#129
20110244238
2011-10-06

METHOD FOR PRODUCING HIGH-PURITY SIO2 FROM SILICATE SOLUTIONS

#130
20110236288
2011-09-29

METHOD FOR PRODUCING HIGH-PURITY SIO2 FROM SILICATE SOLUTIONS

#131
20110206746
2011-08-25

Continuous silica production process and silica product prepared from same

#132
20110179970
2011-07-28

Stable aqueous dispersions of precipitated silica

#133
20110178227
2011-07-21

Precipitated silica having particular morphology, grading and porosity, preparation thereof and reinforcing of polymers therewith

#134
20110172343
2011-07-14

Hydrophobic precipitated silica for defoamer formulations

#135
20110136919
2011-06-09

Precipitated silicic acids for support applications

#136
20110129401
2011-06-02

PRODUCTION OF PRECIPITATED SILICA EMPLOYING A FAST BLENDER

#137
20110021801
2011-01-27

Precipitated silicas as a reinforcing filler for elastomer mixtures

#138
20110011304
2011-01-20

Production of acidic polysilicate products and their application to strengthen wooden structures

#139
20100331177
2010-12-30

AMORPHOUS SILICA PARTICLES HAVING HIGH ABSORBING CAPABILITIES AND HIGH STRUCTURAL CHARACTERISTICS

#140
20100292386
2010-11-18

Microporous precipitated silica

#141
20100288164
2010-11-18

Efficient matting agents based on precipitated silicas

#142
20100221541
2010-09-02

Method of preparing silicas, silicas with specific pore-size and/or particle-size distributions, and the uses thereof, in particular for reinforcing polymers

#143
20100083876
2010-04-08

PRECIPITATED SILICA AND PAPER INDUSTRY/OTHER APPLICATIONS THEREOF

#144
20100068519
2010-03-18

Siliceous materials having tunable porosity and surface morphology and methods of synthesizing same

#145
20100044629
2010-02-25

Process for hydrothermal production of sodium silicate solutions and precipitated silicas

#146
20090214449
2009-08-27

Preparation of precipitated silicas useful as fillers in silicon matrices

#147
20090149097
2009-06-11

NANOSCALAR PARTICLES BASED ON SIO2 AND MIXED OXIDES THEREON, THEIR PREPARATION AND USE FOR TREATING TEXTILE MATERIALS

#148
20090137732
2009-05-28

Precipitated silicas for storage-stable RTV-1 silicone rubber formulations without stabilizer

#149
20090101866
2009-04-23

EFFICIENT MATTING AGENTS BASED ON PRECIPITATED SILICAS

#150
20090060816
2009-03-05

Mesoporous silica particles and production process thereof

#151
20090022646
2009-01-22

Process for hydrothermal production of sodium silicate solutions and precipitated silicas

#152
20090010973
2009-01-08

Silicas

#153
20090010832
2009-01-08

Process for the preparation of finely divided precipitated silica

#154
20080293871
2008-11-27

Highly dispersible precipitated silica having a high surface area

#155
20080267853
2008-10-30

PROCESS FOR PRODUCING INORGANIC SPHERES

#156
20080202387
2008-08-28

Process For Producing Silica and Sodium Sulfite With Sodium Sulfate

#157
20080199385
2008-08-21

Process for Producing Silica and Sodium Sulfite with Sodium Sulfate

#158
20080199384
2008-08-21

Process For Producing Silica, Sodium Sulfite and Sodium Hydrogen Sulfite With Sodium Sulfate

#159
20080175783
2008-07-24

Amino-Functionalized Mesoporous Silica

#160
20080160276
2008-07-03

Method of producing porous silica-based particles

#161
20080160053
2008-07-03

High electrolyte additions for precipitated silica material production

#162
20080160052
2008-07-03

Precipitated silica materials exhibiting high compatibility with cetylpyridinium chloride

#163
20080153694
2008-06-26

Amorphous Silica Particles Having High Absorbing Capabilities and High Structural Characteristics

#164
20080107902
2008-05-08

Spherical ultrafine particles and process for producing the same

#165
20080019898
2008-01-24

Highly-structured silica having a low water uptake, preparation method thereof and uses of same

#166
20070299203
2007-12-27

Hydrophilic silica for sealants

#167
20070286788
2007-12-13

Precipitated silicas having special surface properties

#168
20070275257
2007-11-29

Silica-Based Particles, Method of Producing the Same, Paint for Forming Coating Film and Coated

#169
20070224133
2007-09-27

High-cleaning silica materials made via product morphology control under high shear conditions

#170
20070208127
2007-09-06

Precipitated Silica

#171
20070181036
2007-08-09

Precipitated silica used as reinforcing filler for elastomers

#172
20070125269
2007-06-07

Highly oil absorbing amorphous silica particles

#173
20070100057
2007-05-03

Precipitated silicas with particular pore size distribution

#174
20070059232
2007-03-15

Precipitated silicas with a particular pore size distribution

#175
20070020166
2007-01-25

Air filtration media comprising metal-doped precipitated silica materials

#176
20070003465
2007-01-04

Method for making precipitated silica compositions and products thereof

#177
20060254463
2006-11-16

Specially precipitated silicic acids for rubber applications

#178
20060165581
2006-07-27

Highly dispersible silica for using in rubber

#179
20060137575
2006-06-29

Highly dispersible precipitated silica with a high surface area

#180
20060120941
2006-06-08

Silica support material, its application in a polyalkene catalyst, and its preparation process

#181
20060110338
2006-05-25

High-cleaning/low abrasive silica and materials and dentifrice containing such materials

#182
20060110307
2006-05-25

High-cleaning silica materials made via product morphology control and dentifrice containing such

#183
20060100344
2006-05-11

Highly dispersible precipitated silica

#184
20060099129
2006-05-11

High-surface precipitation silica acids

#185
20060093541
2006-05-04

Aluminum-containing precipitated silicic acid having an adjustable BET/CTAB ratio

#186
20060067864
2006-03-30

Process for producing inorganic spheres

#187
20060051279
2006-03-09

Process for producing silica from olivine

#188
20060008402
2006-01-12

Method for preparing activated silica for water treatment

#189
20050282951
2005-12-22

Precipitated silica

#190
20050228106
2005-10-13

Methods for synthesizing precipitated silica and use thereof

#191
20050192395
2005-09-01

Hydrophobic precipitated silica for defoamer formulations

#192
20050191228
2005-09-01

Hydrophilic precipitated silica for defoamer formulations

#193
20050187334
2005-08-25

Precipitated silica with a high BET/CTAB ratio

#194
20050142170
2005-06-30

Composition comprising a liquid absorbed on a support based on precipitated silica

#195
20050137317
2005-06-23

Silica and silicate by precipitation at constant alkali number, and its use

#196
20050135985
2005-06-23

Precipitated silica used as reinforcing filler for elastomers

#197
20050129628
2005-06-16

Amorphous silica

#198
20050074386
2005-04-07

Low water uptake silicas

#199
20050032965
2005-02-10

Method of preparing silicas, silicas with specific pore-size and/or particle-size distribution, and the uses thereof, in particular for reinforcing polymers

#200
20050025690
2005-02-03

Mesoporous silica particles and production process thereof

#201
20050004297
2005-01-06

Diene rubber composition for tire comprising a specific silica as reinforcing filler

#202
20050002847
2005-01-06

Process for sequestering carbon dioxide and sulfur dioxide

#203
12229001
2019-10-29

Synthesis of mesoporous silica shapes using sodium silicate as a silica source