C08G 69/20
Characterised by the catalysts used
Official title: characterised by the catalysts used
C08G69/20 (Characterised by the catalysts used) appears on 123 US grants and 69 published applications in this corpus.
Search patents in C08G- Granted patents
- 123
- Published applications
- 69
- Assignees
- 65
- Inventors
- 252
- Latest grant
- 4 Feb 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 1 | 0 |
| 1978 | 4 | 0 |
| 1979 | 3 | 0 |
| 1980 | 2 | 0 |
| 1981 | 4 | 0 |
| 1982 | 2 | 0 |
| 1983 | 0 | 0 |
| 1984 | 4 | 0 |
| 1985 | 4 | 0 |
| 1986 | 11 | 0 |
| 1987 | 8 | 0 |
| 1988 | 1 | 0 |
| 1989 | 2 | 0 |
| 1990 | 2 | 0 |
| 1991 | 4 | 0 |
| 1992 | 0 | 0 |
| 1993 | 6 | 0 |
| 1994 | 3 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 6 | 0 |
| 1999 | 4 | 0 |
| 2000 | 2 | 0 |
| 2001 | 1 | 1 |
| 2002 | 2 | 1 |
| 2003 | 4 | 5 |
| 2004 | 4 | 0 |
| 2005 | 1 | 2 |
| 2006 | 1 | 6 |
| 2007 | 0 | 1 |
| 2008 | 1 | 1 |
| 2009 | 2 | 3 |
| 2010 | 0 | 1 |
| 2011 | 1 | 3 |
| 2012 | 0 | 6 |
| 2013 | 2 | 3 |
| 2014 | 4 | 6 |
| 2015 | 8 | 5 |
| 2016 | 2 | 4 |
| 2017 | 3 | 2 |
| 2018 | 1 | 4 |
| 2019 | 0 | 4 |
| 2020 | 1 | 3 |
| 2021 | 1 | 2 |
| 2022 | 1 | 4 |
| 2023 | 1 | 0 |
| 2024 | 1 | 0 |
| 2025 | 2 | 1 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method for producing polyamide comprising amide-based molecular weight modifier, and polyamide produced thereby4 Feb 2025US 12,215,194 B2Hanwha Solutions Corporation
- Three-dimensional inkjet printing using polyamide-forming materials14 Jan 2025US 12,194,673 B2Stratasys, Inc.
- Strong base-initiated N-carboxyanhydride rapid ring-opening polymerization method20 Feb 2024US 11,905,369 B2East China University of Science and Technology
- Method for producing polyamide by coordinated anionic ring-opening polymerization, and polyamide produced thereby8 Aug 2023US 11,718,713 B2Hanwha Chemical Corporation
- Process for producing solid particles22 Feb 2022US 11,253,829 B2LANXESS Deutschland GmbH
- Method for producing polyamide powder for 3d printing23 Jul 2026US 2026/0209436 A1Arkema France
- Polyamide resin, polyamide resin composition, molded body and method for producing polyamide resin18 Dec 2025US 2025/0382415 A1Kureha Corporation
- Method for producing polyamide, and polyamide8 Dec 2022US 2022/0389163 A1Kureha Corporation
- Process for Preparing Polyamide by Anionic Polymerization and Polyamide Prepared Thereby24 Nov 2022US 2022/0372221 A1Hanwha Solutions Corporation
- Three-dimensional inkjet printing using polyamide-forming materials10 Feb 2022US 2022/0040913 A1Stratasys, Inc.
Most cited
By later US patents
- Graft polymers of .epsilon.-caprolactam37US 5,342,894 AAir Products and Chemicals, Inc. · 1994
- Process for producing compound materials with a polylactam matrix which can be thermally postformed33US 5,895,808 AEMS-Inventa AG · 1999
- Macromonomers having reactive end groups28US 5,670,564 AMaxdem Incorporated · 1997
- Macromonomers having reactive end groups22US 5,827,927 AMaxdem Incorporated · 1998
- Polymerization of lactam with graft copolymer promoter21US 4,448,956 AThe General Tire & Rubber Company · 1984