Apparatus for processing of leather
US-12416054-B2 · Sep 16, 2025 · US
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by organic agents
by organic agents · 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 | C14C3/08 |
| Official title | by organic agents |
| Display label | by organic agents |
| Total patents | 20 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2016 | 1 |
| 2017 | 2 |
| 2019 | 3 |
| 2020 | 3 |
| 2022 | 4 |
| 2024 | 6 |
| 2025 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Method of manufacturing leather
US-12163197-B2 · Dec 10, 2024 · US
Method for dyeing of leather
US-2024360524-A1 · Oct 31, 2024 · US
Chrome-free tanning process of ecological leather
US-12129524-B2 · Oct 29, 2024 · US
Apparatus and method for the treatment of a substrate with a multiplicity of solid particles
US-12060672-B2 · Aug 13, 2024 · US
Chrome-free tanning process of ecological leather
US-2024263257-A1 · Aug 8, 2024 · US
Method for dyeing and/or retanning of leather
US-12049676-B2 · Jul 30, 2024 · US
Method of manufacturing leather
US-2022243292-A1 · Aug 4, 2022 · US
Apparatus for processing of leather
US-2022220570-A1 · Jul 14, 2022 · US
Method for dyeing and/or retanning of leather
US-2022220571-A1 · Jul 14, 2022 · US
Polysaccharide and/or polypeptide based graft polymers as synthetic tannins
US-11248274-B2 · Feb 15, 2022 · US
Solid, particulate tanning agent preparations
US-10870896-B2 · Dec 22, 2020 · US
Apparatus and method for the treatment of a substrate with a multiplicity of solid particles
US-2020378054-A1 · Dec 3, 2020 · US
Hexavalent chromium treatment agent and leather or leather article produced using the same
US-10648048-B2 · May 12, 2020 · US
Method for treating an animal substrate
US-10301691-B2 · May 28, 2019 · US
Dispersing agent composition for tanning of hides/skins and process for the preparation thereof
US-10280474-B2 · May 7, 2019 · US
Hexavalent chromium treatment agent and leather or leather article produced using the same
US-2019024197-A1 · Jan 24, 2019 · US
Dispersing Agent Composition for Tanning of Hides/Skins and Process for the Preparation Thereof
US-2017342512-A1 · Nov 30, 2017 · US
Method for treating an animal substrate
US-2017240980-A1 · Aug 24, 2017 · US
Compositions comprising at least one compound containing a carbamoyl sulfonate group and use of the same as tanning agents
US-9376729-B2 · Jun 28, 2016 · US