Method of manufacturing leather
US-12163197-B2 · Dec 10, 2024 · US
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using polymerisation products
using polymerisation products · 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 | C14C3/22 |
| Official title | using polymerisation products |
| Display label | using polymerisation products |
| Total patents | 24 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 2 |
| 2016 | 2 |
| 2017 | 4 |
| 2018 | 1 |
| 2019 | 3 |
| 2020 | 5 |
| 2022 | 4 |
| 2023 | 1 |
| 2024 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Apparatus and method for the treatment of a substrate with a multiplicity of solid particles
US-12060672-B2 · Aug 13, 2024 · US
Light-colored polycarboxylated polysaccharide tanning agent, and preparation method and use thereof
US-11834724-B2 · Dec 5, 2023 · US
Chrome-free leather retanning
US-11473156-B2 · Oct 18, 2022 · US
Light-colored polycarboxylated polysaccharide tanning agent, and preparation method and use thereof
US-2022251672-A1 · Aug 11, 2022 · US
Method of manufacturing leather
US-2022243292-A1 · Aug 4, 2022 · US
Polysaccharide and/or polypeptide based graft polymers as synthetic tannins
US-11248274-B2 · Feb 15, 2022 · US
Chrome-free leather retanning
US-2020385825-A1 · Dec 10, 2020 · US
Apparatus and method for the treatment of a substrate with a multiplicity of solid particles
US-2020378054-A1 · Dec 3, 2020 · US
Method for treating a substrate made of animal fibers with solid particles and a chemical formulation
US-10745769-B2 · Aug 18, 2020 · US
Poly-octavinyl polyhedral oligomeric silsesquioxane-acrylic acid nano composite auxiliary agent for leather and preparation method therefor
US-10676798-B2 · Jun 9, 2020 · US
Method for producing hydrophobising leather treatment agents
US-2020071779-A1 · Mar 5, 2020 · US
Poly-octavinyl polyhedral oligomeric silsesquioxane-acrylic acid nano composite auxiliary agent for leather and preparation method therefor
US-2019284650-A1 · Sep 19, 2019 · 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
Chrome-free leather retanning
US-9970070-B2 · May 15, 2018 · US
Method for treating a substrate made of animal fibers with solid particles and a chemical formulation comprising a colourant
US-9845516-B2 · Dec 19, 2017 · 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
Tanning of substrates using ionic liquids
US-2017029909-A1 · Feb 2, 2017 · US