C14C
Chemical treatment of hides, skins or leather
Official title: CHEMICAL TREATMENT OF HIDES, SKINS OR LEATHER, e.g. TANNING, IMPREGNATING, FINISHING; APPARATUS THEREFOR; COMPOSITIONS FOR TANNING (bleaching of leather or furs D06L; dyeing of leather or furs D06P)
C14C (Chemical treatment of hides, skins or leather) appears on 934 US grants and 623 published applications in this corpus.
Search patents in C14C- Granted patents
- 934
- Published applications
- 623
- Assignees
- 390
- Inventors
- 2,091
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 30 | 0 |
| 1977 | 21 | 0 |
| 1978 | 19 | 0 |
| 1979 | 9 | 0 |
| 1980 | 18 | 0 |
| 1981 | 21 | 0 |
| 1982 | 22 | 0 |
| 1983 | 18 | 0 |
| 1984 | 17 | 0 |
| 1985 | 18 | 0 |
| 1986 | 10 | 0 |
| 1987 | 11 | 0 |
| 1988 | 23 | 0 |
| 1989 | 15 | 0 |
| 1990 | 26 | 0 |
| 1991 | 11 | 0 |
| 1992 | 18 | 0 |
| 1993 | 22 | 0 |
| 1994 | 33 | 0 |
| 1995 | 30 | 0 |
| 1996 | 42 | 0 |
| 1997 | 23 | 0 |
| 1998 | 38 | 0 |
| 1999 | 29 | 0 |
| 2000 | 18 | 0 |
| 2001 | 28 | 6 |
| 2002 | 19 | 16 |
| 2003 | 13 | 24 |
| 2004 | 16 | 41 |
| 2005 | 15 | 37 |
| 2006 | 19 | 39 |
| 2007 | 18 | 38 |
| 2008 | 8 | 25 |
| 2009 | 7 | 22 |
| 2010 | 15 | 30 |
| 2011 | 6 | 13 |
| 2012 | 9 | 14 |
| 2013 | 17 | 26 |
| 2014 | 18 | 14 |
| 2015 | 14 | 20 |
| 2016 | 11 | 19 |
| 2017 | 10 | 35 |
| 2018 | 13 | 11 |
| 2019 | 17 | 30 |
| 2020 | 21 | 28 |
| 2021 | 13 | 23 |
| 2022 | 22 | 34 |
| 2023 | 15 | 19 |
| 2024 | 21 | 28 |
| 2025 | 13 | 18 |
| 2026 | 14 | 13 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Main groups
Granted patents with any code in the group
- C14C 3/00Tanning303
- C14C 9/00Impregnating leather for preserving, waterproofing, making resistant to heat or similar purposes288
- C14C 11/00Surface finishing of leather279
- C14C 1/00Chemical treatment prior to tanning175
- C14C 15/00Apparatus for chemical treatment or washing of hides, skins, or leather55
- C14C 13/00Manufacture of special kinds or leather44
- C14C 5/00Degreasing leather6
- C14C 7/00Pasting processes4
All 9 main groupsShow fewer
Recent patents
- Pigmented free radical curable inkjet inks6 Oct 2026US 12,753,317 B2Agfa NV
- Use of epoxidized vegetable oils as tanning agents29 Sep 2026US 12,747,482 B2Workem S.R.L. Unipersonale
- Method for the antimicrobial protection of hides during the tanning process which includes a biocidal composition and a luminescent additive allowing the identification thereof11 Aug 2026US 12,703,887 B2Ancor TecnolóGica Canaria, S.L.
- Method for dyeing of leather14 Jul 2026US 12,680,141 B2ECCO Sko A/S
- Apparatus for modifying textile products and leather products, and method for modifying textile products and leather products7 Jul 2026US 12,674,260 B2Hap Co., Ltd.
- Surfactant free dispersing agent24 Sep 2026US 2026/0286027 A1Organik Kimya Sanayi Ve Tic. A.S.
- Surface treatment agent for leather and leather surface-treated using the same20 Aug 2026US 2026/0242882 A1Nicca Chemical Co., Ltd.
- Decorated Natural Leather6 Aug 2026US 2026/0226568 A1Agfa NV
- Method for processing hides and fabrics30 Jul 2026US 2026/0218320 A1Renbertech S.R.L.
- Silk Performance Apparel and Products and Methods of Preparing the Same30 Jul 2026US 2026/0218445 A1Evolved By Nature, Inc.
Most cited
By later US patents
- Hide raceway treatment and improved method of curing hides107US 5,435,808 ABirko Corporation · 1995
- Internally-coated porous webs with controlled positioning of modifiers therein102US 5,869,172 ANextec Applications, Inc. · 1999
- Methods and apparatus for controlled placement of a polymer composition into a web96US 5,876,792 ANextec Applications, Inc. · 1999
- Graft copolymers of unsaturated monomers and sugars, a process for the production and the use thereof94US 5,580,941 AChemische Fabrik Stockhausen GmbH · 1996
- Garments of barrier webs81US 6,040,251 ANextec Applications, Inc. · 2000