C08J 11/26
Containing carboxylic acid groups, their anhydrides or esters
Official title: containing carboxylic acid groups, their anhydrides or esters
C08J11/26 (Containing carboxylic acid groups, their anhydrides or esters) appears on 103 US grants and 179 published applications in this corpus.
Search patents in C08J- Granted patents
- 103
- Published applications
- 179
- Assignees
- 125
- Inventors
- 414
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1991 | 2 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 1 |
| 2005 | 0 | 1 |
| 2006 | 0 | 1 |
| 2007 | 0 | 1 |
| 2008 | 0 | 2 |
| 2009 | 0 | 0 |
| 2010 | 1 | 1 |
| 2011 | 1 | 0 |
| 2012 | 0 | 2 |
| 2013 | 3 | 3 |
| 2014 | 2 | 4 |
| 2015 | 1 | 1 |
| 2016 | 0 | 4 |
| 2017 | 3 | 3 |
| 2018 | 2 | 3 |
| 2019 | 4 | 11 |
| 2020 | 11 | 20 |
| 2021 | 10 | 14 |
| 2022 | 7 | 20 |
| 2023 | 14 | 13 |
| 2024 | 9 | 27 |
| 2025 | 17 | 18 |
| 2026 | 11 | 29 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Recycled polymer compositions and methods thereof1 Sep 2026US 12,723,135 B2Braskem S/A
- Method for depolymerising polyester18 Aug 2026US 12,709,671 B2Kolon Industries, Inc.
- Degradable urethane and urethane-urea systems4 Aug 2026US 12,698,358 B2Urethane Systems USA LLC
- Method for manufacturing a recycled material composition7 Jul 2026US 12,674,037 B2SK Chemicals Co., Ltd.
- Disposal method for recyclate containing polyester30 Jun 2026US 12,668,679 B2Nan Ya Plastics Corporation
- Recycled polymer compositions and methods thereof8 Oct 2026US 2026/0308340 A1Braskem S/A
- Method for recycling polyurethane material1 Oct 2026US 2026/0297287 A1National Taiwan University
- Methods for Recycling Cotton and Polyester Fibers from Waste Textiles1 Oct 2026US 2026/0297288 A1Circ, LLC
- Additives for recycling cross-linked polyethylene cable waste24 Sep 2026US 2026/0286088 A1Nichem Solutions
- Polymer compound and method for decomposing same, plastic product containing said polymer compound, fiber-reinforced plastic and method for recovering fibers contained therein, and method for producing polyester, polyurethane, or polycarbonate20 Aug 2026US 2026/0242564 A1Kanagawa University
Most cited
By later US patents
- Process of recovering components from scrap polyester43US 5,298,530 AEastman Kodak Company · 1994
- Reclaimed poly (ethylene terephthalate) coating22US 6,127,436 ASun Chemical Corporation · 2000
- Depolymerization method for polymer containing ester bond in main chain and method for producing polymer containing ester bond in main chain from depolymerization product13US 8,513,379 B2Keio University · 2013
- Process for regenerating a monolithic, macro-structural, inter-penetrating elastomer network morphology from ground tire rubber particles12US 10,662,320 B22020
- Process for producing polymeric plasticizers from polyethylene terephthalate12US 5,068,395 AAmoco Corporation · 1991