D06P 1/621
Compounds without nitrogen
Official title: {Compounds without nitrogen}
D06P1/621 (Compounds without nitrogen) appears on 103 US grants and 36 published applications in this corpus.
Search patents in D06P- Granted patents
- 103
- Published applications
- 36
- Assignees
- 61
- Inventors
- 247
- Latest grant
- 28 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 9 | 0 |
| 1977 | 2 | 0 |
| 1978 | 5 | 0 |
| 1979 | 2 | 0 |
| 1980 | 4 | 0 |
| 1981 | 7 | 0 |
| 1982 | 4 | 0 |
| 1983 | 3 | 0 |
| 1984 | 2 | 0 |
| 1985 | 0 | 0 |
| 1986 | 2 | 0 |
| 1987 | 1 | 0 |
| 1988 | 2 | 0 |
| 1989 | 3 | 0 |
| 1990 | 3 | 0 |
| 1991 | 3 | 0 |
| 1992 | 2 | 0 |
| 1993 | 3 | 0 |
| 1994 | 2 | 0 |
| 1995 | 4 | 0 |
| 1996 | 5 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 6 | 0 |
| 2000 | 2 | 0 |
| 2001 | 1 | 0 |
| 2002 | 2 | 1 |
| 2003 | 1 | 4 |
| 2004 | 3 | 2 |
| 2005 | 2 | 1 |
| 2006 | 1 | 0 |
| 2007 | 1 | 4 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 1 |
| 2012 | 0 | 0 |
| 2013 | 1 | 0 |
| 2014 | 0 | 3 |
| 2015 | 1 | 2 |
| 2016 | 1 | 1 |
| 2017 | 1 | 3 |
| 2018 | 1 | 3 |
| 2019 | 3 | 1 |
| 2020 | 3 | 2 |
| 2021 | 0 | 1 |
| 2022 | 1 | 3 |
| 2023 | 0 | 0 |
| 2024 | 1 | 3 |
| 2025 | 0 | 0 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Stabilizing additive for pigmented inkjet inks and methods of use28 Jul 2026US 12,692,404 B1
- Process for dyeing animal textile fibers comprising the use of purified synthetic food dyes6 Feb 2024US 11,891,757 B2Vebachem S.R.L.S.
- Process and system for printing images on absorptive surfaces20 Sep 2022US 11,447,648 B2Kornit Digital Ltd.
- Ink jet textile printing ink and ink jet textile printing ink set15 Sep 2020US 10,774,230 B2Seiko Epson Corporation
- Plastisol based composition for blocking dye migration from dyed polyester fabric into the print8 Sep 2020US 10,767,061 B2Fujifilm Sericol India Pvt. Ltd.
- Compositions and method of making ph indicating nonwoven material and absorbent pad16 Jul 2026US 2026/0201636 A1Kas Pet, LLC
- Digital ink composition8 Aug 2024US 2024/0263031 A1Kornit Digital Ltd.
- Ink Jet Ink Composition And Recording Method6 Jun 2024US 2024/0182734 A1Seiko Epson Corporation
- Formaldehyde-free, aqueous composition for discharge printing of fabric22 Feb 2024US 2024/0060236 A1Archroma IP GmbH
- Process for dyeing animal textile fibers comprising the use of purified synthetic food dyes3 Nov 2022US 2022/0349121 A1Vebachem S.R.L.S.
Most cited
By later US patents
- Surfactant enhanced dyeing95US 5,593,459 A1997
- 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 for improving the lightfasteness of nylon dyeings using copper sulfonates55US 4,813,970 ACrompton & Knowles Corporation · 1989
- Process for dyeing synthetic polyamide fibre materials43US 4,121,898 ABayer Aktiengesellschaft · 1978