C08G 73/0688
With only one nitrogen atom in the ring
Official title: {with only one nitrogen atom in the ring, e.g. polyquinolines}
C08G73/0688 (With only one nitrogen atom in the ring) appears on 96 US grants and 60 published applications in this corpus.
Search patents in C08G- Granted patents
- 96
- Published applications
- 60
- Assignees
- 68
- Inventors
- 256
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 2 | 0 |
| 1980 | 1 | 0 |
| 1981 | 2 | 0 |
| 1982 | 2 | 0 |
| 1983 | 2 | 0 |
| 1984 | 0 | 0 |
| 1985 | 3 | 0 |
| 1986 | 3 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 2 | 0 |
| 1990 | 4 | 0 |
| 1991 | 2 | 0 |
| 1992 | 3 | 0 |
| 1993 | 5 | 0 |
| 1994 | 2 | 0 |
| 1995 | 4 | 0 |
| 1996 | 1 | 0 |
| 1997 | 3 | 0 |
| 1998 | 3 | 0 |
| 1999 | 2 | 0 |
| 2000 | 2 | 0 |
| 2001 | 1 | 1 |
| 2002 | 2 | 1 |
| 2003 | 1 | 0 |
| 2004 | 0 | 1 |
| 2005 | 0 | 2 |
| 2006 | 0 | 1 |
| 2007 | 1 | 5 |
| 2008 | 1 | 2 |
| 2009 | 1 | 1 |
| 2010 | 3 | 3 |
| 2011 | 4 | 7 |
| 2012 | 2 | 2 |
| 2013 | 4 | 5 |
| 2014 | 3 | 6 |
| 2015 | 6 | 2 |
| 2016 | 2 | 3 |
| 2017 | 2 | 4 |
| 2018 | 1 | 0 |
| 2019 | 2 | 2 |
| 2020 | 1 | 0 |
| 2021 | 1 | 2 |
| 2022 | 1 | 1 |
| 2023 | 0 | 2 |
| 2024 | 2 | 1 |
| 2025 | 0 | 3 |
| 2026 | 3 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- UV excitable polyfluorene based conjugates and their use in methods of analyte detection29 Sep 2026US 12,748,106 B2AAT Bioquest, Inc.
- Covalent organic frameworks26 May 2026US 12,638,144 B2The Regents of the University of California
- Polymeric binder and high molecular weight polymer antifouling compositions28 Apr 2026US 12,612,531 B2The University of British Columbia
- Class of nitrogen-containing heterocyclic polymers, a class of polymer membranes and applications thereof12 Nov 2024US 12,139,580 B2Wuhan Limo Technology Co., Ltd
- Quinolines, polyquinolines, molecular segments of fullerenes and graphene nanoribbons, and graphene nanoribbons and methods of their synthesis2 Apr 2024US 11,945,780 B2The Regents of the University of California
- Novel polynaphthalimide, electrode comprising the same and lithium-ion battery comprising the same24 Sep 2026US 2026/0290835 A1Academia Sinica
- Bio-based benzoxazines containing dynamic ester bond and composites thereof2 Jul 2026US 2026/0184843 A1
- Anion exchange polymers capable of controlled crosslinking5 Mar 2026US 2026/0061413 A1University of Delaware
- Triptycene-phenanthroline based microporous polymer for co2 capture over ch4 and n223 Oct 2025US 2025/0326892 A1King Fahd University of Petroleum and Minerals
- Photoactivable hybrid organic-inorganic sol-gel resin for 3d printing12 Jun 2025US 2025/0189888 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
- Photoimageable compositions comprising polyquinoline polymer and diazo compound36US 5,889,141 AHitachi Chemical Company, Ltd. · 1999
- Proton-conducting membrane and use thereof28US 7,235,320 B2PEMEAS GmbH · 2007
- Process for the preparation of polyalkyl-1-oxa-diazaspirodecane compounds26US 5,594,142 AHoechst Aktiengesellschaft · 1997