D06P 3/32
Leather skins
Official title: leather {skins}
D06P3/32 (Leather skins) appears on 150 US grants and 95 published applications in this corpus.
Search patents in D06P- Granted patents
- 150
- Published applications
- 95
- Assignees
- 88
- Inventors
- 335
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 6 | 0 |
| 1977 | 4 | 0 |
| 1978 | 2 | 0 |
| 1979 | 2 | 0 |
| 1980 | 1 | 0 |
| 1981 | 4 | 0 |
| 1982 | 0 | 0 |
| 1983 | 2 | 0 |
| 1984 | 6 | 0 |
| 1985 | 3 | 0 |
| 1986 | 2 | 0 |
| 1987 | 3 | 0 |
| 1988 | 6 | 0 |
| 1989 | 7 | 0 |
| 1990 | 1 | 0 |
| 1991 | 6 | 0 |
| 1992 | 5 | 0 |
| 1993 | 5 | 0 |
| 1994 | 4 | 0 |
| 1995 | 4 | 0 |
| 1996 | 4 | 0 |
| 1997 | 2 | 0 |
| 1998 | 1 | 0 |
| 1999 | 4 | 0 |
| 2000 | 4 | 0 |
| 2001 | 2 | 1 |
| 2002 | 2 | 2 |
| 2003 | 1 | 2 |
| 2004 | 3 | 3 |
| 2005 | 3 | 4 |
| 2006 | 2 | 4 |
| 2007 | 2 | 8 |
| 2008 | 1 | 3 |
| 2009 | 1 | 1 |
| 2010 | 0 | 2 |
| 2011 | 1 | 2 |
| 2012 | 0 | 1 |
| 2013 | 2 | 1 |
| 2014 | 0 | 0 |
| 2015 | 1 | 0 |
| 2016 | 1 | 4 |
| 2017 | 2 | 14 |
| 2018 | 1 | 4 |
| 2019 | 11 | 2 |
| 2020 | 2 | 3 |
| 2021 | 2 | 7 |
| 2022 | 4 | 9 |
| 2023 | 3 | 5 |
| 2024 | 5 | 4 |
| 2025 | 6 | 6 |
| 2026 | 4 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- D06P 3/3206Using acid dyes51
- D06P 3/3286Using reactive dyes16
- D06P 3/326Using metallisable or mordant dyes10
- D06P 3/3246Using vat, sulfur or indigo dyes7
- D06P 3/324Using basic dyes3
- D06P 3/3293Mineral dyeing3
- D06P 3/3266Using polymeric dyes2
- D06P 3/3273Preparing azo dyes on the material1
All 10 subgroupsShow fewer
Recent patents
- Use of epoxidized vegetable oils as tanning agents29 Sep 2026US 12,747,482 B2Workem S.R.L. Unipersonale
- Method for dyeing of leather14 Jul 2026US 12,680,141 B2ECCO Sko A/S
- Aqueous polyurethane resin dispersion19 May 2026US 12,630,663 B2Agfa NV
- Process for tanning animal hide10 Feb 2026US 12,545,969 B2University of Lancaster
- Apparatus for processing of leather16 Sep 2025US 12,416,054 B2ECCO Sko A/S
- Method for processing hides and fabrics30 Jul 2026US 2026/0218320 A1Renbertech S.R.L.
- Identification mark and a method for manufacturing the identification mark25 Jun 2026US 2026/0174203 A1Accenture Global Solutions Limited
- Method For Producing Transfer Medium And Transfer Recording Method16 Apr 2026US 2026/0103839 A1Seiko Epson Corporation
- Process for dyeing textiles and enzymes used therein30 Oct 2025US 2025/0333903 A1Sanko Tekstil Isletmeleri San. Ve Tic. A. S.
- Decorating a Hide by Inkjet Technology30 Oct 2025US 2025/0333904 A1Agfa NV
Most cited
By later US patents
- Process for dyeing leather with an aqueous bath containing sulfonated carbon black and black anionic dye41US 5,152,801 ACiba-Geigy Corporation · 1992
- Lithographic printing process and transfer sheet36US 5,741,387 ARiverside Industries, Inc. · 1998
- Impregnation of leather with micro-encapsulated material26US 6,277,439 B1Pittards Public Limited Company · 2001
- Finishing process24US 4,260,389 ASandoz Ltd. · 1981
- Process for the treatment of skins, hides or shett materials containing collagen by a dense, pressurized fluid22US 5,512,058 ACentre Technique Cuir Chaussure Maroquinerie · 1996