Absorbent particles
US-2018369782-A1 · Dec 27, 2018 · US
characterised by their form or physical properties
characterised by their form or physical properties · 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 | B01J20/28 |
| Official title | characterised by their form or physical properties |
| Display label | characterised by their form or physical properties |
| Total patents | 407 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 15 |
| 2016 | 11 |
| 2017 | 11 |
| 2018 | 37 |
| 2019 | 45 |
| 2020 | 51 |
| 2021 | 48 |
| 2022 | 57 |
| 2023 | 42 |
| 2024 | 39 |
| 2025 | 39 |
| 2026 | 12 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Chromatographic materials for the separation of unsaturated molecules
US-2018345248-A1 · Dec 6, 2018 · US
Chromatographic materials
US-2018326399-A1 · Nov 15, 2018 · US
Egg-shell type hybrid structure of highly dispersed nanoparticle-metal oxide support, preparation method thereof, and use thereof
US-10112172-B2 · Oct 30, 2018 · US
Humidity controlling apparatus
US-10086328-B2 · Oct 2, 2018 · US
Ozone oxidative decomposition treatment method for vocs and/or gaseous inorganic reducing compounds in gas
US-2018264405-A1 · Sep 20, 2018 · US
Separation material
US-2018264435-A1 · Sep 20, 2018 · US
Preparation method of superabsorbent polymer and superabsorbent polymer prepared thereby
US-2018237594-A1 · Aug 23, 2018 · US
Affinity chromatography carrier and method for purifying biological substance
US-2018229215-A1 · Aug 16, 2018 · US
Filter Media For Respiratory Protection
US-2018221692-A1 · Aug 9, 2018 · US
Method for preparing a sorbent
US-2018161753-A1 · Jun 14, 2018 · US
Particulate water absorbing agent
US-2018161756-A1 · Jun 14, 2018 · US
Adsorbent for adsorbing iodine compounds and/or antimony, method for preparing said adsorbent, and method and apparatus for treating radioactive waste liquid by using said adsorbent
US-2018158558-A1 · Jun 7, 2018 · US
Excrement treatment material and method for manufacturing the same
US-2018155107-A1 · Jun 7, 2018 · US
Fiber and column for protein adsorption
US-9982369-B2 · May 29, 2018 · US
Gas adsorbent and vacuum thermal insulation material including gas adsorbent
US-9968907-B2 · May 15, 2018 · US
High-performance adsorbents based on activated carbon having high meso- and macroporosity
US-2018125886-A1 · May 10, 2018 · US
Method for dry packing chromatography columns
US-9958421-B2 · May 1, 2018 · US
Chromatographic materials
US-9925521-B2 · Mar 27, 2018 · US
Process for removing heavy metals from process streams
US-9908084-B2 · Mar 6, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B01J20/28?
- CPC B01J20/28 is the Cooperative Patent Classification code for “characterised by their form or physical properties.”
- How many patents are filed under CPC B01J20/28 (characterised by their form or physical properties)?
- Our database includes 407 publications tagged with this CPC code.
- Is patent activity under CPC B01J20/28 growing?
- Publication counts under this code: 39 in 2024 vs 39 in 2025 (latest complete years).