C08G 64/1641
Containing nitrogen
Official title: {containing nitrogen}
C08G64/1641 (Containing nitrogen) appears on 31 US grants and 26 published applications in this corpus.
Search patents in C08G- Granted patents
- 31
- Published applications
- 26
- Assignees
- 24
- Inventors
- 87
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1989 | 4 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 2 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 2 | 0 |
| 2001 | 2 | 1 |
| 2002 | 1 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 5 |
| 2005 | 1 | 1 |
| 2006 | 1 | 1 |
| 2007 | 1 | 0 |
| 2008 | 0 | 3 |
| 2009 | 1 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 1 |
| 2017 | 0 | 0 |
| 2018 | 0 | 1 |
| 2019 | 0 | 1 |
| 2020 | 3 | 4 |
| 2021 | 1 | 0 |
| 2022 | 1 | 2 |
| 2023 | 0 | 3 |
| 2024 | 2 | 2 |
| 2025 | 2 | 1 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Polycarbonate and method for preparing same29 Sep 2026US 12,747,320 B2LG Chem.Ltd.
- Polymer-particle light-cleavable carrier systems for photodynamic therapy22 Jul 2025US 12,364,759 B2Biolitec Research GmbH
- Process for the synthesis of polycarbonates from cyclic monothiocarbonates22 Jul 2025US 12,365,760 B2BASF SE
- AI assisted cyclic carbonate monomer synthesis8 Oct 2024US 12,110,280 B2International Business Machines Corporation
- Star polymers with enhanced antimicrobial activity in response to light19 Mar 2024US 11,930,818 B2Agency for Science, Technology and Research
- Film structure suitable for rapid lamination20 Mar 2025US 2025/0091332 A1Covestro Deutschland AG
- Resin and Method for Preparing Same21 Nov 2024US 2024/0384026 A1LG Chem.Ltd.
- Polycarbonate and method for preparing same11 Apr 2024US 2024/0117114 A1LG Chem.Ltd.
- Biodegradable polyimidazoliums and oligoimidazoliums27 Apr 2023US 2023/0131111 A1Nanyang Technological University
- Ai assisted cyclic carbonate monomer synthesis12 Jan 2023US 2023/0009671 A1International Business Machines Corporation
Most cited
By later US patents
- Copolymers of tyrosine-based polycarbonate and poly(alkylene oxide)299US 5,658,995 ARutgers, The State University · 1997
- Biodegradable, anionic polymers derived from the amino acid L-tyrosine283US 6,120,491 AThe State University of Rutgers · 2000
- Radio-opaque polymer biomaterials182US 6,475,477 B1Rutgers, The State University · 2002
- Polyarylamine compounds and systems utilizing polyarylamine compounds129US 4,806,443 AXerox Corporation · 1989
- Polyarylamine compounds and systems utilizing polyarylamine compounds96US 4,801,517 AXerox Corporation · 1989