Hollow fiber membrane for enclosed space air remediation
US-2023356154-A1 · Nov 9, 2023 · US
Enzymatic
Enzymatic · 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 | B01D2255/804 |
| Official title | Enzymatic |
| Display label | Enzymatic |
| Total patents | 77 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 1 |
| 2016 | 5 |
| 2017 | 7 |
| 2018 | 9 |
| 2019 | 10 |
| 2020 | 7 |
| 2021 | 8 |
| 2022 | 6 |
| 2023 | 11 |
| 2024 | 4 |
| 2025 | 6 |
| 2026 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Methods of Continuously Capturing Carbon Dioxide from Exhaust Gas Produced from Equipment Operating at Wellsite
US-2023332491-A1 · Oct 19, 2023 · US
Carbon monoxide dehydrogenase having excellent oxygen resistance and enzyme activity, and use thereof
US-2023323313-A1 · Oct 12, 2023 · US
Heat-stable metagenomic carbonic anhydrases and their use
US-11773386-B2 · Oct 3, 2023 · US
Variant of nitrous oxide reductase protein and method of reducing concentration of nitrous oxide in sample
US-2023173432-A1 · Jun 8, 2023 · US
Porous Liquid, Self-Replenishing Porous Liquid And Methods Of Making And Using The Same
US-2023137305-A1 · May 4, 2023 · US
Porous liquid and methods of making and using the same
US-11590447-B2 · Feb 28, 2023 · US
Intensification of biocatalytic gas absorption
US-11420159-B2 · Aug 23, 2022 · US
Recombinant microorganism including genetic modification that increases activity of nitric oxide reductase and method of reducing concentration of nitric oxide in sample by using the same
US-2022162650-A1 · May 26, 2022 · US
SOx CAPTURE USING CARBONATE ABSORBENT
US-2022134279-A1 · May 5, 2022 · US
Biocatalyst-based co2 stripping techniques and related systems
US-2022118403-A1 · Apr 21, 2022 · US
Enzymatically active high-flux selectively gas-permeable membranes for enhanced oil recovery and carbon capture
US-2022105475-A1 · Apr 7, 2022 · US
Enzymatically active high-flux selectively gas-permeable membranes for enhanced oil recovery and carbon capture
US-11219869-B2 · Jan 11, 2022 · US
SOx capture using carbonate absorbent
US-11202988-B2 · Dec 21, 2021 · US
Materials and Methods for Enhanced Carbon Utilization and/or Sequestration as well as Reducing Deleterious Atmospheric Gases
US-2021267214-A1 · Sep 2, 2021 · US
Heat-Stable Metagenomic Carbonic Anhydrases And Their Use
US-2021147823-A1 · May 20, 2021 · US
Carbon dioxide conversion reactor, series reactor for converting and capturing carbon dioxide including the same, and process of converting and capturing carbon dioxide using the same
US-10981111-B2 · Apr 20, 2021 · US
CO2 capture methods using Thermovibrio ammonificans carbonic anhydrase
US-10926220-B2 · Feb 23, 2021 · US
Heat-stable metagenomic carbonic anhydrases and their use
US-10927364-B2 · Feb 23, 2021 · US
Method and apparatus for CO2 sequestration
US-10920249-B2 · Feb 16, 2021 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B01D2255/804?
- CPC B01D2255/804 is the Cooperative Patent Classification code for “Enzymatic.”
- How many patents are filed under CPC B01D2255/804 (Enzymatic)?
- Our database includes 77 publications tagged with this CPC code.
- Is patent activity under CPC B01D2255/804 growing?
- Publication counts under this code: 4 in 2024 vs 6 in 2025 (latest complete years).