D06P 3/52
Polyesters
D06P3/52 (Polyesters) appears on 431 US grants and 349 published applications in this corpus.
Search patents in D06P- Granted patents
- 431
- Published applications
- 349
- Assignees
- 266
- Inventors
- 1,188
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 40 | 0 |
| 1977 | 11 | 0 |
| 1978 | 17 | 0 |
| 1979 | 6 | 0 |
| 1980 | 10 | 0 |
| 1981 | 13 | 0 |
| 1982 | 8 | 0 |
| 1983 | 3 | 0 |
| 1984 | 5 | 0 |
| 1985 | 3 | 0 |
| 1986 | 4 | 0 |
| 1987 | 5 | 0 |
| 1988 | 4 | 0 |
| 1989 | 4 | 0 |
| 1990 | 6 | 0 |
| 1991 | 4 | 0 |
| 1992 | 4 | 0 |
| 1993 | 5 | 0 |
| 1994 | 7 | 0 |
| 1995 | 9 | 0 |
| 1996 | 7 | 0 |
| 1997 | 7 | 0 |
| 1998 | 10 | 0 |
| 1999 | 14 | 0 |
| 2000 | 7 | 0 |
| 2001 | 5 | 2 |
| 2002 | 8 | 12 |
| 2003 | 11 | 13 |
| 2004 | 10 | 17 |
| 2005 | 13 | 13 |
| 2006 | 8 | 6 |
| 2007 | 3 | 7 |
| 2008 | 6 | 4 |
| 2009 | 2 | 5 |
| 2010 | 5 | 14 |
| 2011 | 3 | 8 |
| 2012 | 5 | 3 |
| 2013 | 9 | 8 |
| 2014 | 2 | 11 |
| 2015 | 7 | 13 |
| 2016 | 4 | 11 |
| 2017 | 4 | 11 |
| 2018 | 6 | 19 |
| 2019 | 11 | 22 |
| 2020 | 11 | 25 |
| 2021 | 17 | 29 |
| 2022 | 17 | 31 |
| 2023 | 11 | 17 |
| 2024 | 13 | 22 |
| 2025 | 19 | 12 |
| 2026 | 8 | 14 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- D06P 3/54Using dispersed dyestuffs282
- D06P 3/522Using basic dyes33
- D06P 3/523Using vat or sulfur dyes17
- D06P 3/521Using acid dyes16
- D06P 3/528Using reactive dyes15
- D06P 3/56Preparing azo dyes on the material6
- D06P 3/526Using polymeric dyes5
- D06P 3/525Using metallisable or mordant dyes1
All 9 subgroupsShow fewer
Recent patents
- Simultaneously dyeing and flame-retardant finishing method for polyester based textile6 Oct 2026US 12,753,549 B2Daikyo Chemical Co., Ltd.
- Polyester fiber dyeing processes and compositions thereof16 Jun 2026US 12,655,580 B1Shaw Industries Ltd.
- Dye-sublimation inkjet printing for textile19 May 2026US 12,630,730 B2Kornit Digital Ltd.
- Cationic dyes and uses thereof12 May 2026US 12,624,215 B2Ever Dye
- Coated lightweight fabric, in particular for a spinnaker14 Apr 2026US 12,601,108 B2Porcher Industries
- Sublimation printing transfer paper having tacky properties8 Oct 2026US 2026/0307415 A1
- Disperse dyes for dyeing polyester fibres8 Oct 2026US 2026/0308841 A1University of Leeds
- Sublimation Dye Ink Jet Black Ink Composition And Recording Method10 Sep 2026US 2026/0265554 A1Seiko Epson Corporation
- Composition for promoting biodegradation of fabric and post-processing method for promoting biodegradation of fabric using the same3 Sep 2026US 2026/0258600 A1One Eight inc.,
- Cationic dyes and uses thereof20 Aug 2026US 2026/0242608 A1Ever Dye
Most cited
By later US patents
- Process for improving the photochemical stability of dyeings on polyester fibre materials77US 4,831,068 ACiba-Geigy Corporation · 1989
- Enzymatic modification of the surface of a polyester fiber or article73US 6,254,645 B1Genencor International, Inc. · 2001
- Solutions of U.V. absorbers useful for improving the light fastness of dyeings on polyester55US 4,557,730 ASandoz Ltd. · 1985
- Cationic dyestuffs54US 3,971,807 ABayer Aktiengesellschaft · 1976
- Disperse dyeing of polyester with benzalketo derivatives as carriers: benzalacetone, methyl cinnamate etc.54US 4,229,172 ASandoz Ltd. · 1980