C10L 1/2368
Homo- or copolymers derived from unsaturated compounds containing heterocyclic compounds containing nitrogen
Official title: {homo- or copolymers derived from unsaturated compounds containing heterocyclic compounds containing nitrogen in the ring (C10L1/221 takes precedence)}
C10L1/2368 (Homo- or copolymers derived from unsaturated compounds containing heterocyclic compounds containing nitrogen) appears on 157 US grants and 59 published applications in this corpus.
Search patents in C10L- Granted patents
- 157
- Published applications
- 59
- Assignees
- 52
- Inventors
- 261
- Latest grant
- 17 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 4 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 6 | 0 |
| 1986 | 4 | 0 |
| 1987 | 4 | 0 |
| 1988 | 0 | 0 |
| 1989 | 4 | 0 |
| 1990 | 2 | 0 |
| 1991 | 4 | 0 |
| 1992 | 3 | 0 |
| 1993 | 5 | 0 |
| 1994 | 3 | 0 |
| 1995 | 2 | 0 |
| 1996 | 8 | 0 |
| 1997 | 10 | 0 |
| 1998 | 24 | 0 |
| 1999 | 7 | 0 |
| 2000 | 13 | 0 |
| 2001 | 13 | 2 |
| 2002 | 2 | 1 |
| 2003 | 4 | 4 |
| 2004 | 2 | 2 |
| 2005 | 1 | 3 |
| 2006 | 1 | 2 |
| 2007 | 2 | 3 |
| 2008 | 0 | 0 |
| 2009 | 0 | 1 |
| 2010 | 2 | 2 |
| 2011 | 0 | 4 |
| 2012 | 1 | 1 |
| 2013 | 0 | 2 |
| 2014 | 5 | 2 |
| 2015 | 0 | 3 |
| 2016 | 0 | 0 |
| 2017 | 1 | 7 |
| 2018 | 5 | 2 |
| 2019 | 4 | 3 |
| 2020 | 1 | 3 |
| 2021 | 1 | 4 |
| 2022 | 1 | 2 |
| 2023 | 0 | 1 |
| 2024 | 0 | 2 |
| 2025 | 0 | 3 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Process for reduction of asphaltenes from marine fuels17 Mar 2026US 12,577,489 B2BASF SE
- Preparation method for fumaric acid pour point depressant for crude oil12 Jul 2022US 11,384,185 B1Deshi Energy Technology Group Co., Ltd.
- Copolymers as additives for fuels and lubricants10 Aug 2021US 11,085,001 B2BASF SE
- Poly (vinyl carprolactam) kinetic gas hydrate inhibitor and method for preparing the same4 Aug 2020US 10,731,070 B2Indorama Ventures Oxides LLC
- Associative polymers and related compositions, methods and systems3 Dec 2019US 10,494,509 B2California Institute of Technology
- Associative polymers and related compositions, methods and systems2 Oct 2025US 2025/0304771 A1California Institute of Technology
- Associative polymers for use in a flow and related compositions, methods and systems11 Sep 2025US 2025/0283007 A1California Institute of Technology
- Process for reduction of asphaltenes from marine fuels24 Jul 2025US 2025/0236804 A1BASF SE
- Associative polymers for use in a flow and related compositions, methods and systems29 Feb 2024US 2024/0067892 A1California Institute of Technology
- Associative polymers and related compositions, methods and systems22 Feb 2024US 2024/0059873 A1California Institute of Technology
Most cited
By later US patents
- Combination of ethylene polymer, polymer having alkyl side chains, and nitrogen containing compound to improve cold flow properties of distillate fuel oils135US 4,211,534 AExxon Research & Engineering Co. · 1980
- Novel VI improver, dispersant, and anti-oxidant additive and lubricating oil composition containing same122US 4,863,623 ATexaco Inc. · 1989
- Polyolefin graft copolymers87US 4,146,489 ARohm and Haas Company · 1979
- Fuel compositions having polyalkylene succinimides and preparation thereof57US 5,853,434 AChevron Chemical Company · 1998
- Dispersant compositions having polyalkylene succinimides56US 5,851,965 AChevron Chemical Company · 1998