D06P 3/02
Material containing basic nitrogen
D06P3/02 (Material containing basic nitrogen) appears on 756 US grants and 426 published applications in this corpus.
Search patents in D06P- Granted patents
- 756
- Published applications
- 426
- Assignees
- 350
- Inventors
- 1,526
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 49 | 0 |
| 1977 | 26 | 0 |
| 1978 | 22 | 0 |
| 1979 | 14 | 0 |
| 1980 | 17 | 0 |
| 1981 | 20 | 0 |
| 1982 | 9 | 0 |
| 1983 | 16 | 0 |
| 1984 | 12 | 0 |
| 1985 | 13 | 0 |
| 1986 | 11 | 0 |
| 1987 | 19 | 0 |
| 1988 | 22 | 0 |
| 1989 | 22 | 0 |
| 1990 | 12 | 0 |
| 1991 | 24 | 0 |
| 1992 | 22 | 0 |
| 1993 | 20 | 0 |
| 1994 | 26 | 0 |
| 1995 | 21 | 0 |
| 1996 | 19 | 0 |
| 1997 | 13 | 0 |
| 1998 | 23 | 0 |
| 1999 | 25 | 0 |
| 2000 | 17 | 0 |
| 2001 | 11 | 7 |
| 2002 | 13 | 15 |
| 2003 | 15 | 13 |
| 2004 | 11 | 17 |
| 2005 | 10 | 19 |
| 2006 | 9 | 14 |
| 2007 | 6 | 24 |
| 2008 | 10 | 23 |
| 2009 | 6 | 12 |
| 2010 | 4 | 14 |
| 2011 | 6 | 9 |
| 2012 | 9 | 8 |
| 2013 | 8 | 5 |
| 2014 | 5 | 14 |
| 2015 | 4 | 12 |
| 2016 | 5 | 10 |
| 2017 | 6 | 18 |
| 2018 | 6 | 20 |
| 2019 | 20 | 20 |
| 2020 | 11 | 28 |
| 2021 | 11 | 25 |
| 2022 | 23 | 33 |
| 2023 | 11 | 22 |
| 2024 | 17 | 14 |
| 2025 | 15 | 17 |
| 2026 | 10 | 13 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- D06P 3/04Containing amide groups750
- D06P 3/021Using acid dyes6
- D06P 3/022Using basic dyes2
- D06P 3/026Using polymeric dyes2
- D06P 3/023Using vat or sulfur dyes1
- D06P 3/028Using reactive dyes1
- D06P 3/024Using dispersed dyes0
- D06P 3/025Using metallised dyes0
All 9 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 a hook-and-loop fastener strap1 Sep 2026US 12,723,348 B2Gottlieb Binder GmbH & Co.KG
- Method for dyeing of leather14 Jul 2026US 12,680,141 B2ECCO Sko A/S
- Process of dying polymer parts16 Jun 2026US 12,655,262 B2Howmedica Osteonics Corp.
- Aqueous polyurethane resin dispersion19 May 2026US 12,630,663 B2Agfa NV
- Ink Jet Ink Composition, Recording Method, And Method For Producing Ink Jet Ink Composition17 Sep 2026US 2026/0275135 A1Seiko Epson Corporation
- Polyamide fabrics with reduced carbon footprint on dyeing10 Sep 2026US 2026/0265995 A1Nilit Ltd.
- Cationic dyes and uses thereof20 Aug 2026US 2026/0242608 A1Ever Dye
- Method for processing hides and fabrics30 Jul 2026US 2026/0218320 A1Renbertech S.R.L.
- Textile dyeing16 Jul 2026US 2026/0201638 A1Prism Bio, Inc.
Most cited
By later US patents
- Process for conveniently providing stain-resistant polyamide carpets107US 4,501,591 AMonsanto Company · 1985
- Biodegradable dry cleaning solvent88US 5,888,250 ARynex Holdings Ltd. · 1999
- Process for photochemical stabilization of polyamide fiber material and mixtures thereof with other fibers: water-soluble copper complex dye and light-stabilizer69US 4,874,391 ACiba-Geigy Corporation · 1989
- Process for photochemical stabilization of undyed and dyed polyamide fibre material and blends thereof with other fibres: copper complex and light stabilizer treatment68US 4,775,386 ACiba-Geigy Corporation · 1988
- Method of dyeing hair with indolines, indoles and indazoles59US 4,013,404 AAmerican Cyanamid Company · 1977