Gc column ferrules having first and second deformable surfaces
US-2018364204-A1 · Dec 20, 2018 · US
based on silica
based on silica · Cooperative Patent Classification (CPC)
Separating, mixing, shaping, printing, and transporting materials.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | B01J20/283 |
| Official title | based on silica |
| Display label | based on silica |
| Total patents | 192 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 25 |
| 2016 | 14 |
| 2017 | 11 |
| 2018 | 15 |
| 2019 | 18 |
| 2020 | 25 |
| 2021 | 19 |
| 2022 | 10 |
| 2023 | 13 |
| 2024 | 21 |
| 2025 | 20 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Superficially porous materials comprising a substantially nonporous hybrid core having narrow particle size distribution
US-2018353934-A1 · Dec 13, 2018 · US
Chromatographic materials for the separation of unsaturated molecules
US-2018345248-A1 · Dec 6, 2018 · US
Method for recovering catalyst
US-10144007-B2 · Dec 4, 2018 · US
Chromatographic materials
US-2018326399-A1 · Nov 15, 2018 · US
Method for measuring polymer modification ratio
US-2018328901-A1 · Nov 15, 2018 · US
Superficially porous materials comprising a substantially nonporous hybrid core having narrow particle size distribution; process for the preparation thereof; and use thereof for chromatographic separations
US-10092893-B2 · Oct 9, 2018 · US
Chromatographic materials for the separation of unsaturated molecules
US-10092894-B2 · Oct 9, 2018 · US
Multicomponent quantitative analysis method using chromatography
US-10018602-B2 · Jul 10, 2018 · US
Chromatographic materials
US-9925521-B2 · Mar 27, 2018 · US
Functionalized particles having modified phases
US-2017349612-A1 · Dec 7, 2017 · US
Superficially porous particles with dual pore structure and methods for making the same
US-2017282155-A1 · Oct 5, 2017 · US
Protein chromatography matrices with hydrophilic copolymer coatings
US-9758542-B2 · Sep 12, 2017 · US
Filtration material, filtration filter, method for manufacturing filtration material, filtration method, copolymer, and method for manufacturing copolymer
US-2017216814-A1 · Aug 3, 2017 · US
Sodium-calcium-aluminosilicate column for adsorbing CO2
US-9649619-B2 · May 16, 2017 · US
Isothermal CO2 adsorption column
US-9616407-B2 · Apr 11, 2017 · US
Device and method for extraction of compounds with aromatic cycles contained in a liquid sample
US-2017097325-A1 · Apr 6, 2017 · US
Media for affinity chromatography
US-9587009-B2 · Mar 7, 2017 · US
Isothermal co2 adsorption column
US-2017014800-A1 · Jan 19, 2017 · US
Sodium-calcium-aluminosilicate column for adsorbing co2
US-2017014799-A1 · Jan 19, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B01J20/283?
- CPC B01J20/283 is the Cooperative Patent Classification code for “based on silica.”
- How many patents are filed under CPC B01J20/283 (based on silica)?
- Our database includes 192 publications tagged with this CPC code.
- Is patent activity under CPC B01J20/283 growing?
- Publication counts under this code: 21 in 2024 vs 20 in 2025 (latest complete years).