C08G 65/325
Containing nitrogen
Official title: containing nitrogen
C08G65/325 (Containing nitrogen) appears on 174 US grants and 110 published applications in this corpus.
Search patents in C08G- Granted patents
- 174
- Published applications
- 110
- Assignees
- 107
- Inventors
- 389
- Latest grant
- 24 Feb 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 1 | 0 |
| 1978 | 3 | 0 |
| 1979 | 2 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 2 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 2 | 0 |
| 1989 | 6 | 0 |
| 1990 | 6 | 0 |
| 1991 | 10 | 0 |
| 1992 | 3 | 0 |
| 1993 | 6 | 0 |
| 1994 | 8 | 0 |
| 1995 | 5 | 0 |
| 1996 | 3 | 0 |
| 1997 | 7 | 0 |
| 1998 | 5 | 0 |
| 1999 | 5 | 0 |
| 2000 | 5 | 0 |
| 2001 | 3 | 1 |
| 2002 | 3 | 0 |
| 2003 | 1 | 2 |
| 2004 | 0 | 1 |
| 2005 | 1 | 2 |
| 2006 | 1 | 1 |
| 2007 | 1 | 5 |
| 2008 | 1 | 7 |
| 2009 | 3 | 3 |
| 2010 | 5 | 10 |
| 2011 | 6 | 2 |
| 2012 | 5 | 3 |
| 2013 | 1 | 1 |
| 2014 | 2 | 3 |
| 2015 | 5 | 5 |
| 2016 | 3 | 5 |
| 2017 | 6 | 3 |
| 2018 | 2 | 9 |
| 2019 | 5 | 5 |
| 2020 | 6 | 6 |
| 2021 | 7 | 10 |
| 2022 | 4 | 5 |
| 2023 | 4 | 6 |
| 2024 | 5 | 8 |
| 2025 | 6 | 3 |
| 2026 | 1 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Method of preparing protein conjugate24 Feb 2026US 12,558,431 B2Hanmi Pharm. Co., Ltd.
- Method for preparing long-acting drug conjugate through preparation of intermediate9 Dec 2025US 12,491,258 B2Hanmi Pharm. Co., Ltd.
- System and method for preparing polyether amine by catalytic amination of polyether diol2 Sep 2025US 12,404,366 B2Shangyu Huangma Surface Activated Reagent Research Institute Co., Ltd.
- Protein complex comprising non-peptidyl polymer-coupled fatty acid derivative compound as linker and preparation method therefor19 Aug 2025US 12,390,533 B2Hanmi Pharm. Co., Ltd.
- Method for purifying polyethylene glycol compound20 May 2025US 12,304,999 B2Nof Corporation
- New ether-amine compositions and the use thereof as curing agents for epoxy resins23 Jul 2026US 2026/0209427 A1BASF SE
- Vulcanisable rubber mixture, vulcanised material, and rubber product23 Jul 2026US 2026/0209485 A1Continental Reifen Deutschland GmbH
- Multi-arm polyethylene glycol-drug conjugate9 Jul 2026US 2026/0191972 A1Jenkem Technology Co., Ltd. (Bejing)
- Semiconductor photoresist composition and method of forming patterns using the composition15 Jan 2026US 2026/0016748 A1Samsung Electronics Co., Ltd.
- Rapidly crosslinkable hydrogels with enhanced radiopacity for medical applications19 Jun 2025US 2025/0195697 A1Boston Scientific Scimed, Inc.
Most cited
By later US patents
- Gasoline-engine fuels containing polyetheramines or polyetheramine derivatives75US 5,112,364 ABASF SE · 1992
- Polyether amine modification of polypropylene68US 5,721,315 AHuntsman Petrochemical Corporation · 1998
- Polyether amine modification of polypropylene68US 5,783,630 AHuntsman Petrochemical Corporation · 1998
- Process for the preparation of polyoxyalkylene polyamines63US 4,766,245 ATexaco Inc. · 1988
- Dyeable polyolefin containing polyetheramine modified functionalized polyolefin52US 5,985,999 AHuntsman Petrochemical Corporation · 1999