C14C 1/00
Chemical treatment prior to tanning
C14C1/00 (Chemical treatment prior to tanning) appears on 175 US grants and 121 published applications in this corpus.
Search patents in C14C- Granted patents
- 175
- Published applications
- 121
- Assignees
- 115
- Inventors
- 436
- Latest grant
- 19 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 4 | 0 |
| 1978 | 1 | 0 |
| 1979 | 2 | 0 |
| 1980 | 7 | 0 |
| 1981 | 7 | 0 |
| 1982 | 7 | 0 |
| 1983 | 5 | 0 |
| 1984 | 5 | 0 |
| 1985 | 1 | 0 |
| 1986 | 3 | 0 |
| 1987 | 4 | 0 |
| 1988 | 3 | 0 |
| 1989 | 1 | 0 |
| 1990 | 5 | 0 |
| 1991 | 2 | 0 |
| 1992 | 6 | 0 |
| 1993 | 1 | 0 |
| 1994 | 6 | 0 |
| 1995 | 3 | 0 |
| 1996 | 8 | 0 |
| 1997 | 1 | 0 |
| 1998 | 4 | 0 |
| 1999 | 5 | 0 |
| 2000 | 4 | 0 |
| 2001 | 2 | 2 |
| 2002 | 6 | 6 |
| 2003 | 4 | 3 |
| 2004 | 6 | 5 |
| 2005 | 5 | 7 |
| 2006 | 2 | 5 |
| 2007 | 4 | 5 |
| 2008 | 1 | 5 |
| 2009 | 0 | 1 |
| 2010 | 0 | 2 |
| 2011 | 0 | 5 |
| 2012 | 1 | 1 |
| 2013 | 3 | 6 |
| 2014 | 2 | 2 |
| 2015 | 2 | 8 |
| 2016 | 2 | 9 |
| 2017 | 3 | 5 |
| 2018 | 5 | 2 |
| 2019 | 4 | 5 |
| 2020 | 5 | 9 |
| 2021 | 4 | 4 |
| 2022 | 4 | 6 |
| 2023 | 3 | 6 |
| 2024 | 2 | 6 |
| 2025 | 3 | 5 |
| 2026 | 3 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Production of silicate solutions and their uses19 May 2026US 12,630,433 B2Total Alchemy Solutions, LLC
- Deliming composition and method for deliming hides28 Apr 2026US 12,612,670 B2TFL Ledertechnik GmbH
- Compositions for visualization of cleaning efficacy and product coverage7 Apr 2026US 12,594,354 B2
- Tannery product for oxidative hair removal treatment of animal hides and skins and relative method28 Oct 2025US 12,454,730 B2Leder Chimica SRL
- Leather improving agent23 Sep 2025US 12,421,563 B2Kao Corporation
- Method for processing hides and fabrics30 Jul 2026US 2026/0218320 A1Renbertech S.R.L.
- Methods for dehairing animal skins and hides and formulations related to same6 Nov 2025US 2025/0340959 A1Buckman Laboratories International, Inc.
- Hide sorting systems and methods14 Aug 2025US 2025/0257414 A1National Beef Packing Company, LLC
- Process for liming of hides, skins or pelts12 Jun 2025US 2025/0188551 A1StahI International B.V.
- Methods of preserving hides6 Feb 2025US 2025/0043368 A1Leatherteq Limited
Most cited
By later US patents
- Hide raceway treatment and improved method of curing hides107US 5,435,808 ABirko Corporation · 1995
- Waste water treatment with peracetic acid compositions57US 5,472,619 ABirko Corporation · 1995
- Method and composition for hair removal33US 6,365,145 B1New York Blood Center, Inc. · 2002
- Lipases from hyphozyma28US 5,856,163 ANovo Nordisk A/S · 1999
- Method for de-hairing animals25US 5,149,295 AMonfort, Inc. · 1992