C07C 2/42
Homo- or co-oligomerisation with ring formation, not being a diels-alder conversion
Official title: homo- or co-oligomerisation with ring formation, not being a Diels-Alder conversion
C07C2/42 (Homo- or co-oligomerisation with ring formation, not being a diels-alder conversion) appears on 140 US grants and 90 published applications in this corpus.
Search patents in C07C- Granted patents
- 140
- Published applications
- 90
- Assignees
- 79
- Inventors
- 378
- Latest grant
- 28 Oct 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 8 | 0 |
| 1978 | 15 | 0 |
| 1979 | 6 | 0 |
| 1980 | 7 | 0 |
| 1981 | 4 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 2 | 0 |
| 1985 | 1 | 0 |
| 1986 | 2 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 2 | 0 |
| 1990 | 1 | 0 |
| 1991 | 4 | 0 |
| 1992 | 3 | 0 |
| 1993 | 5 | 0 |
| 1994 | 2 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 2 | 1 |
| 2003 | 0 | 1 |
| 2004 | 0 | 0 |
| 2005 | 1 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 1 |
| 2008 | 0 | 1 |
| 2009 | 0 | 3 |
| 2010 | 0 | 2 |
| 2011 | 1 | 0 |
| 2012 | 1 | 0 |
| 2013 | 0 | 2 |
| 2014 | 1 | 2 |
| 2015 | 4 | 12 |
| 2016 | 10 | 4 |
| 2017 | 6 | 2 |
| 2018 | 7 | 9 |
| 2019 | 3 | 9 |
| 2020 | 7 | 4 |
| 2021 | 8 | 9 |
| 2022 | 7 | 4 |
| 2023 | 4 | 6 |
| 2024 | 4 | 3 |
| 2025 | 4 | 5 |
| 2026 | 0 | 10 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Process and catalyst system for conversion of C6 aromatics to higher aromatics28 Oct 2025US 12,454,498 B2Indian Oil Corporation Limited
- Method of processing waste plastic and pyrolysis oil from waste plastic14 Oct 2025US 12,441,668 B2Sabic Global Technologies B.V.
- Flexible benzene production via selective-higher-olefin oligomerization of ethylene7 Oct 2025US 12,435,016 B2Chevron Phillips Chemical Company LP
- 1,5,9-cyclododecatriene composition and continuous preparation method therefor29 Apr 2025US 12,286,388 B2Hanwha Solutions Corporation
- Depolymerization of oligomers and polymers comprising cyclobutane units31 Dec 2024US 12,180,149 B2The Trustees of Princeton University
- Systems and methods for producing a dimethylcyclooctane-based aviation fuel from isoprene30 Apr 2026US 2026/0117135 A1CleanJoule, Inc.
- Process synthesizing sustainable aviation fuel compositions2 Apr 2026US 2026/0092023 A1Visolis, Inc.
- Process for synthesizing polymer compositions from starting materials comprising a double bond2 Apr 2026US 2026/0092130 A1Visolis, Inc.
- Compositions for fuel blending made by a sustainable process, and sustainable fuel compositions therefrom2 Apr 2026US 2026/0092228 A1Visolis, Inc.
- Recycled content paraxylene from recycled content distillation12 Mar 2026US 2026/0070860 A1Eastman Chemical Company
Most cited
By later US patents
- Total synthesis of benzene from non-hydrocarbon materials26US 4,009,219 A1977
- Process for the vapor-phase thermal cracking of dicyclopentadiene and a process for the manufacture of high purity dicyclopentadiene14US 5,321,177 AMaruzen Petrochemical Co., Ltd. · 1994
- Stop control circuit for brushless DC motor13US 4,438,377 ASony Corporation · 1984
- Process for preparing cyclododecatriene12US 8,168,841 B2Evonik Degussa GmbH · 2012
- Carbonyl derivatives of 1-phenylindan suitable for use as polymerization photoinitiators, their preparation and use11US 4,987,159 AFratelli Lamberti S.p.A. · 1991