C08G 65/333
Containing nitrogen
Official title: containing nitrogen
C08G65/333 (Containing nitrogen) appears on 1,153 US grants and 1,226 published applications in this corpus.
Search patents in C08G- Granted patents
- 1,153
- Published applications
- 1,226
- Assignees
- 608
- Inventors
- 2,931
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 5 | 0 |
| 1978 | 7 | 0 |
| 1979 | 13 | 0 |
| 1980 | 17 | 0 |
| 1981 | 10 | 0 |
| 1982 | 1 | 0 |
| 1983 | 6 | 0 |
| 1984 | 6 | 0 |
| 1985 | 8 | 0 |
| 1986 | 3 | 0 |
| 1987 | 5 | 0 |
| 1988 | 6 | 0 |
| 1989 | 6 | 0 |
| 1990 | 11 | 0 |
| 1991 | 11 | 0 |
| 1992 | 16 | 0 |
| 1993 | 10 | 0 |
| 1994 | 21 | 0 |
| 1995 | 8 | 0 |
| 1996 | 21 | 0 |
| 1997 | 23 | 0 |
| 1998 | 25 | 0 |
| 1999 | 21 | 0 |
| 2000 | 14 | 0 |
| 2001 | 12 | 9 |
| 2002 | 20 | 14 |
| 2003 | 21 | 23 |
| 2004 | 8 | 29 |
| 2005 | 12 | 25 |
| 2006 | 15 | 29 |
| 2007 | 15 | 22 |
| 2008 | 10 | 48 |
| 2009 | 14 | 51 |
| 2010 | 24 | 67 |
| 2011 | 42 | 49 |
| 2012 | 41 | 52 |
| 2013 | 46 | 45 |
| 2014 | 50 | 53 |
| 2015 | 43 | 63 |
| 2016 | 57 | 63 |
| 2017 | 48 | 65 |
| 2018 | 49 | 69 |
| 2019 | 61 | 73 |
| 2020 | 54 | 60 |
| 2021 | 45 | 69 |
| 2022 | 35 | 71 |
| 2023 | 47 | 52 |
| 2024 | 35 | 44 |
| 2025 | 42 | 54 |
| 2026 | 28 | 27 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- C08G 65/33303Containing amino group480
- C08G 65/33396Having oxygen in addition to nitrogen325
- C08G 65/33331Containing imide group171
- C08G 65/3332Containing carboxamide group114
- C08G 65/33348Containing isocyanate group108
- C08G 65/33344Containing carbamate group57
- C08G 65/33365Containing cyano group42
- C08G 65/33379Containing nitro group41
Recent patents
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- In situ thiol-maleimide crosslinked hydrogel for immune checkpoint blockade delivery1 Sep 2026US 12,723,081 B2Georgia Tech Research Corporation
- Nitrogen-branched non-linear pegylated lipid containing a tertiary amine and application thereof18 Aug 2026US 12,708,675 B2Xiamen Sinopeg Biotech Co., Ltd.
- Thermostable lipid nanoparticle and methods of use thereof4 Aug 2026US 12,697,308 B2Merck Sharp & Dohme Corp.
- Polyamide block copolymer, polyamide block copolymer composition, and molded article8 Oct 2026US 2026/0308332 A1Kuraray Co., Ltd.
- Compound, coating composition and film8 Oct 2026US 2026/0308409 A1Industrial Technology Research Institute
- Uv light stabilizers13 Aug 2026US 2026/0234326 A1BASF SE
- Polyol-b-polyoxazoline copolymers6 Aug 2026US 2026/0224611 A1Freie UniversitäT Berlin
- Polymer-oligonucleotide conjugates6 Aug 2026US 2026/0224725 A1Primelink Biotherapeutics (Suzhou) Co., Ltd. Ltd.
Most cited
By later US patents
- Adhesive formulations1,017US 8,349,987 B2Covidien LP · 2013
- Non-antigenic branched polymer conjugates604US 5,643,575 AEnzon, Inc. · 1997
- Water-soluble non-antigenic polymer linkable to biologically active material304US 6,113,906 AEnzon, Inc. · 2000
- Non-antigenic branched polymer conjugates264US 5,919,455 AEnzon, Inc. · 1999
- Soluble, degradable poly(ethylene glycol) derivatives for controllable release of bound molecules into solution263US 6,214,966 B1Shearwater Corporation · 2001