Method of filtering tannery wastewater and a tannery wastewater treatment system
US-2025368541-A1 · Dec 4, 2025 · US
from tanneries
from tanneries · Cooperative Patent Classification (CPC)
Chemical and metallurgical processes, compounds, and materials.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | C02F2103/24 |
| Official title | from tanneries |
| Display label | from tanneries |
| Total patents | 37 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 4 |
| 2016 | 3 |
| 2017 | 7 |
| 2018 | 4 |
| 2019 | 7 |
| 2020 | 4 |
| 2021 | 2 |
| 2022 | 1 |
| 2023 | 1 |
| 2025 | 4 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Method for simultaneously treating high concentration of sulfide and organic composition contained in waste liquid
US-12486185-B2 · Dec 2, 2025 · US
Method for chromium removal from post-tanning wastewater
US-12264094-B2 · Apr 1, 2025 · US
Membrane bioreactor system for treating wastewater using oxygen
US-2025002386-A1 · Jan 2, 2025 · US
Method for simultaneously treating high concentration of sulfide and organic composition contained in waste liquid
US-2023406744-A1 · Dec 21, 2023 · US
Method for chromium removal from post-tanning wastewater
US-2022289610-A1 · Sep 15, 2022 · US
Destabilization and separation of high stable colloids
US-11136249-B1 · Oct 5, 2021 · US
Humidification-dehumidification desalination systems and methods
US-10981082-B2 · Apr 20, 2021 · US
Method of treatment using a solid particulate material and apparatus therefor
US-10773976-B2 · Sep 15, 2020 · US
Chemical Oxygen Demand (COD) Removal Powder Mixture
US-2020198998-A1 · Jun 25, 2020 · US
Animal skin substrate treatment method and apparatus
US-10590499-B2 · Mar 17, 2020 · US
Phosphonium-crosslinked chitosan and methods for using and producing the same
US-10538598-B2 · Jan 21, 2020 · US
Humidification-dehumidification desalination systems and methods
US-2019329152-A1 · Oct 31, 2019 · US
Methods To Prepare Haloamines Using At Least One Solid Reactant And Products Made Therefrom
US-2019233287-A1 · Aug 1, 2019 · US
Method of treatment using a solid particulate material and apparatus therefor
US-2019210892-A1 · Jul 11, 2019 · US
Phosphonium-crosslinked chitosan and methods for using and producing the same
US-2019185588-A1 · Jun 20, 2019 · US
Animal skin substrate treatment method and apparatus
US-2019144959-A1 · May 16, 2019 · US
Recovering chrome from a tannery process
US-10202661-B2 · Feb 12, 2019 · US
Production of ultra-high-density brines
US-10167218-B2 · Jan 1, 2019 · US
Surface-treated calcium carbonate and phyllosilicate and its use in water purification
US-10065872-B2 · Sep 4, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C02F2103/24?
- CPC C02F2103/24 is the Cooperative Patent Classification code for “from tanneries.”
- How many patents are filed under CPC C02F2103/24 (from tanneries)?
- Our database includes 37 publications tagged with this CPC code.
- Is patent activity under CPC C02F2103/24 growing?
- Publication counts under this code: 1 in 2023 vs 4 in 2025 (latest complete years).