C08G 73/0666
Polycondensates containing five-membered rings, condensed with other rings, with nitrogen atoms as
Official title: {Polycondensates containing five-membered rings, condensed with other rings, with nitrogen atoms as the only ring hetero atoms}
C08G73/0666 (Polycondensates containing five-membered rings, condensed with other rings, with nitrogen atoms as) appears on 235 US grants and 179 published applications in this corpus.
Search patents in C08G- Granted patents
- 235
- Published applications
- 179
- Assignees
- 141
- Inventors
- 632
- Latest grant
- 14 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 3 | 0 |
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 9 | 0 |
| 1981 | 4 | 0 |
| 1982 | 3 | 0 |
| 1983 | 6 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 5 | 0 |
| 1987 | 3 | 0 |
| 1988 | 2 | 0 |
| 1989 | 4 | 0 |
| 1990 | 13 | 0 |
| 1991 | 5 | 0 |
| 1992 | 3 | 0 |
| 1993 | 3 | 0 |
| 1994 | 5 | 0 |
| 1995 | 5 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 5 | 0 |
| 1999 | 7 | 0 |
| 2000 | 5 | 0 |
| 2001 | 0 | 3 |
| 2002 | 4 | 2 |
| 2003 | 5 | 3 |
| 2004 | 1 | 5 |
| 2005 | 0 | 4 |
| 2006 | 2 | 6 |
| 2007 | 4 | 3 |
| 2008 | 1 | 4 |
| 2009 | 0 | 3 |
| 2010 | 2 | 6 |
| 2011 | 3 | 11 |
| 2012 | 9 | 6 |
| 2013 | 4 | 9 |
| 2014 | 8 | 9 |
| 2015 | 10 | 7 |
| 2016 | 4 | 16 |
| 2017 | 7 | 12 |
| 2018 | 17 | 14 |
| 2019 | 15 | 13 |
| 2020 | 12 | 9 |
| 2021 | 4 | 6 |
| 2022 | 5 | 6 |
| 2023 | 10 | 13 |
| 2024 | 5 | 3 |
| 2025 | 5 | 2 |
| 2026 | 2 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Self-healing polymers14 Jul 2026US 12,679,974 B2Vrije Universiteit Brussel
- Graphene-biopolymer compositions and methods of making and using same17 Mar 2026US 12,577,111 B2The Research Foundation for The State University of New York
- Photomechanical polymers, compositions, and methods23 Sep 2025US 12,426,494 B2The Florida State University Research Foundation, Inc.
- Phthalonitrile resins, methods of making same and compositions thereof22 Jul 2025US 12,365,763 B2Huntsman Advanced Materials Americas LLC
- Polymerizable compositions including a phthalonitrile resin and a polyoxometalate, articles, and methods6 May 2025US 12,291,602 B23M Innovative Properties Company
- Coating agent composition for nitrogen-atom-containing substrate13 Aug 2026US 2026/0235956 A1Nissan Chemical Corporation
- Photosensitive resin composition, resin film having pattern and method for producing same, and semiconductor circuit board16 Jul 2026US 2026/0202742 A1Jsr Corporation
- Reinforced ion-conducting membrane7 May 2026US 2026/0128341 A1Johnson Matthey Hydrogen Technologies Limited
- Semiconductor structure including isolation elements with etching-resistant upper portions and method for manufacturing the same15 Jan 2026US 2026/0018459 A1Taiwan Semiconductor Manufacturing Company.Ltd
- Thermally stable monomers and methods of use thereof18 Sep 2025US 2025/0289929 A1
Most cited
By later US patents
- Mesogenic polycyanates and thermosets thereof123US 5,442,039 AThe Dow Chemical Company · 1995
- Mesogenic polycyanates and thermosets thereof86US 5,428,125 AThe Dow Chemical Company · 1995
- Optical coupling device and process for modulating light66US 5,845,025 AThe Trustees of the University of Pennsylvania · 1998
- Polymer conjugates of K-252A and derivatives thereof58US 8,673,347 B2Creabilis Therapeutics S.p.A. · 2014
- Metal ion porphyrin-containing poly(imide)56US 5,312,896 ASRI International · 1994