C14C 9/02
Impregnating leather for preserving, waterproofing, making resistant to heat or similar purposes
Official title: using fatty or oily materials, e.g. fat liquoring
C14C9/02 (Impregnating leather for preserving, waterproofing, making resistant to heat or similar purposes) appears on 100 US grants and 77 published applications in this corpus.
Search patents in C14C- Granted patents
- 100
- Published applications
- 77
- Assignees
- 60
- Inventors
- 271
- Latest grant
- 13 Jan 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 6 | 0 |
| 1989 | 5 | 0 |
| 1990 | 4 | 0 |
| 1991 | 0 | 0 |
| 1992 | 2 | 0 |
| 1993 | 2 | 0 |
| 1994 | 0 | 0 |
| 1995 | 3 | 0 |
| 1996 | 7 | 0 |
| 1997 | 3 | 0 |
| 1998 | 2 | 0 |
| 1999 | 4 | 0 |
| 2000 | 5 | 0 |
| 2001 | 1 | 0 |
| 2002 | 2 | 0 |
| 2003 | 0 | 0 |
| 2004 | 1 | 7 |
| 2005 | 1 | 7 |
| 2006 | 1 | 4 |
| 2007 | 4 | 5 |
| 2008 | 1 | 2 |
| 2009 | 0 | 2 |
| 2010 | 1 | 4 |
| 2011 | 2 | 1 |
| 2012 | 1 | 4 |
| 2013 | 3 | 2 |
| 2014 | 0 | 1 |
| 2015 | 3 | 3 |
| 2016 | 0 | 3 |
| 2017 | 2 | 12 |
| 2018 | 1 | 1 |
| 2019 | 6 | 2 |
| 2020 | 1 | 2 |
| 2021 | 3 | 0 |
| 2022 | 4 | 5 |
| 2023 | 3 | 5 |
| 2024 | 3 | 3 |
| 2025 | 0 | 1 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Composition and process for waterproofing leather13 Jan 2026US 12,522,883 B2Stahl International B.V.
- Method of manufacturing leather10 Dec 2024US 12,163,197 B2Midori Auto Leather Co., Ltd.
- Method for dyeing and/or retanning of leather30 Jul 2024US 12,049,676 B2ECCO Sko A/S
- Leather odor removal composition and method of manufacturing leather with reduced odor using the same14 May 2024US 11,981,970 B2Hyundai Motor Company
- Tanning agent-free leather making method29 Aug 2023US 11,739,390 B2Sichuan University
- Method for processing hides and fabrics30 Jul 2026US 2026/0218320 A1Renbertech S.R.L.
- Antimicrobial protection in the post-tanning process for leather by incorporating a biocide composition and a luminescent additive15 May 2025US 2025/0154614 A1Ancor TecnolóGica Canaria, S.L.
- Method for dyeing of leather31 Oct 2024US 2024/0360524 A1ECCO Sko A/S
- Composition and process for waterproofing leather19 Sep 2024US 2024/0309474 A1Stahl International B.V.
- Modified polylactones useful for fatliquoring6 Jun 2024US 2024/0182636 A1TFL Ledertechnik GmbH
Most cited
By later US patents
- Interpolymers of unsaturated carboxylic acids and unsaturated sulfur acids37US 6,207,780 B1Rohm and Haas Company · 2001
- Mild detergent mixtures16US 5,981,450 AHenkel Kommanditgesellschaft auf Aktien · 1999
- Leather treatment and process for treating leather14US 5,256,318 ADaikin Industries, Ltd. · 1993
- Biofabricated material containing collagen fibrils13US 10,301,440 B2Modern Meadow, Inc. · 2019
- Method for making a biofabricated material containing collagen fibrils12US 10,370,504 B2Modern Meadow, Inc. · 2019