C08G 69/32
From aromatic diamines and aromatic dicarboxylic acids with both amino and carboxylic
Official title: from aromatic diamines and aromatic dicarboxylic acids with both amino and carboxylic groups aromatically bound
C08G69/32 (From aromatic diamines and aromatic dicarboxylic acids with both amino and carboxylic) appears on 485 US grants and 321 published applications in this corpus.
Search patents in C08G- Granted patents
- 485
- Published applications
- 321
- Assignees
- 236
- Inventors
- 1,134
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 8 | 0 |
| 1977 | 10 | 0 |
| 1978 | 5 | 0 |
| 1979 | 5 | 0 |
| 1980 | 4 | 0 |
| 1981 | 5 | 0 |
| 1982 | 4 | 0 |
| 1983 | 9 | 0 |
| 1984 | 3 | 0 |
| 1985 | 3 | 0 |
| 1986 | 4 | 0 |
| 1987 | 4 | 0 |
| 1988 | 9 | 0 |
| 1989 | 14 | 0 |
| 1990 | 22 | 0 |
| 1991 | 27 | 0 |
| 1992 | 17 | 0 |
| 1993 | 24 | 0 |
| 1994 | 25 | 0 |
| 1995 | 9 | 0 |
| 1996 | 18 | 0 |
| 1997 | 19 | 0 |
| 1998 | 17 | 0 |
| 1999 | 14 | 0 |
| 2000 | 7 | 0 |
| 2001 | 2 | 0 |
| 2002 | 3 | 1 |
| 2003 | 1 | 3 |
| 2004 | 3 | 7 |
| 2005 | 2 | 3 |
| 2006 | 4 | 3 |
| 2007 | 2 | 7 |
| 2008 | 1 | 6 |
| 2009 | 3 | 9 |
| 2010 | 5 | 10 |
| 2011 | 1 | 4 |
| 2012 | 3 | 9 |
| 2013 | 8 | 25 |
| 2014 | 20 | 17 |
| 2015 | 10 | 25 |
| 2016 | 12 | 15 |
| 2017 | 11 | 21 |
| 2018 | 14 | 19 |
| 2019 | 12 | 10 |
| 2020 | 17 | 18 |
| 2021 | 10 | 19 |
| 2022 | 7 | 27 |
| 2023 | 12 | 16 |
| 2024 | 12 | 15 |
| 2025 | 18 | 18 |
| 2026 | 6 | 14 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method and device for preparing modified poly (m-phenylene isophthalamide) (PMIA) fiber by continuous polymerization-dry-wet spinning1 Sep 2026US 12,723,329 B2Zhuzhou Times New Material Technology Co., Ltd.
- Method for the synthesis of a two-dimensional or quasi-two-dimensional polymer film, the two-dimensional or quasi-two-dimensional polymer film and the use14 Apr 2026US 12,600,827 B2Max-Planck-Gesellschaft Zur FöRderung Der Wissenschaften E. V.
- Preparation method of Ti3C2TX MXene quantum dot (MQD)-modified polyamide (PA) reverse-osmosis (RO) membrane7 Apr 2026US 12,594,529 B2Research Institute of Chemical Defense, PLA Academy of Military Sciences
- Polyamide-based film, preparation method thereof, and cover window and display device comprising the same24 Mar 2026US 12,583,970 B2Microworks Solutions Co., Ltd.
- High tenacity filled films comprising a polymer having imidazole groups17 Mar 2026US 12,577,369 B2Dupont Safety & Construction, Inc.
- Contorted polyamide membranes and methods of use thereof8 Oct 2026US 2026/0307019 A1University of Houston System
- Integrated System and Process for Producing High Performance Polyamides from Circular Components8 Oct 2026US 2026/0308322 A1Celanese Polymers Holding, Inc.
- Polyamide Aerogel and Preparation Method Therefor3 Sep 2026US 2026/0258215 A1Microvast Advanced Membranes Inc.
- Negative photosensitive resin composition, dry film, cured product, and electronic component13 Aug 2026US 2026/0235951 A1Taiyo Holdings Co., Ltd.
- Highly porous polymer nanofilms6 Aug 2026US 2026/0225070 A1Massachusetts Institute of Technology
Most cited
By later US patents
- Negative birefringent polyimide films102US 5,344,916 AThe University of Akron · 1994
- Process for producing polyamides with lactam or urea solvent and CaCl.sub.286US 4,172,938 ATeijin Limited · 1979
- Negative birefringent rigid rod polymer films64US 5,580,950 AThe University of Akron · 1996
- Binder for mineral wool products61US 6,878,800 B2Rockwool International A/S · 2005
- Negative birefringent polyimide films56US 5,480,964 AThe University of Akron · 1996