C07C 2/36
As phosphines, arsines, stilbines or bismuthines
Official title: as phosphines, arsines, stilbines or bismuthines
C07C2/36 (As phosphines, arsines, stilbines or bismuthines) appears on 286 US grants and 207 published applications in this corpus.
Search patents in C07C- Granted patents
- 286
- Published applications
- 207
- Assignees
- 86
- Inventors
- 502
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 7 | 0 |
| 1977 | 2 | 0 |
| 1978 | 8 | 0 |
| 1979 | 5 | 0 |
| 1980 | 3 | 0 |
| 1981 | 5 | 0 |
| 1982 | 5 | 0 |
| 1983 | 2 | 0 |
| 1984 | 5 | 0 |
| 1985 | 8 | 0 |
| 1986 | 1 | 0 |
| 1987 | 7 | 0 |
| 1988 | 4 | 0 |
| 1989 | 4 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 9 | 0 |
| 1994 | 4 | 0 |
| 1995 | 2 | 0 |
| 1996 | 6 | 0 |
| 1997 | 0 | 0 |
| 1998 | 6 | 0 |
| 1999 | 1 | 0 |
| 2000 | 3 | 0 |
| 2001 | 1 | 1 |
| 2002 | 2 | 1 |
| 2003 | 2 | 3 |
| 2004 | 3 | 1 |
| 2005 | 1 | 6 |
| 2006 | 3 | 7 |
| 2007 | 4 | 8 |
| 2008 | 5 | 8 |
| 2009 | 5 | 5 |
| 2010 | 2 | 9 |
| 2011 | 8 | 8 |
| 2012 | 8 | 12 |
| 2013 | 5 | 4 |
| 2014 | 6 | 4 |
| 2015 | 8 | 13 |
| 2016 | 12 | 18 |
| 2017 | 10 | 12 |
| 2018 | 11 | 12 |
| 2019 | 21 | 19 |
| 2020 | 13 | 8 |
| 2021 | 10 | 7 |
| 2022 | 19 | 17 |
| 2023 | 14 | 9 |
| 2024 | 9 | 4 |
| 2025 | 2 | 8 |
| 2026 | 2 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Systems and methods for linear alpha olefins production15 Sep 2026US 12,735,371 B2Sabic Global Technologies B.V.
- Sustainable jet fuel and process20 Jan 2026US 12,528,999 B2Chevron Phillips Chemical Company LP
- Ligands for production of 1-octene in chromium assisted ethylene oligomerization process14 Oct 2025US 12,440,830 B2Sabic Global Technologies B.V.
- Methods for reducing fouling in upgrading reactors7 Oct 2025US 12,435,015 B2Dow Global Technologies LLC
- Heat exchange configurations for oligomerization of olefins15 Oct 2024US 12,116,330 B2Chevron Phillips Chemical Company LP
- Ethylene oligomerization method with reduced polymer generation and improved productivity6 Aug 2026US 2026/0225976 A1
- Oligomerization process11 Jun 2026US 2026/0159459 A1Shell Oil Comapny
- Methods for producing 1-hexene26 Feb 2026US 2026/0055035 A1Sabic Global Technologies B.V.
- Preparation and storage of ethylene oligomerization catalyst compositions18 Dec 2025US 2025/0382243 A1Chevron Phillips Chemical Company LP
- Metal organic framework-immobilized cr-monophosphine complex catalyzed ethylene pentamerization to selectively produce 1-decene19 Jun 2025US 2025/0197316 A1Hamad Bin Khalifa University (HBKU)
Most cited
By later US patents
- Ethylene trimerization100US 5,811,618 AAmoco Corporation · 1998
- Catalyst and process for ethylene oligomerization67US 6,184,428 B2Saudi Basic Industries Corporation · 2001
- Olefin trimerisation using a catalyst comprising a source of chromium, molybdenum or tungsten and a ligand containing at least one phosphorous, arsenic or antimony atom bound to at least one (hetero)hydrocarbyl group65US 6,800,702 B2BP Chemicals Limited · 2004
- Ethylene trimerization63US 5,968,866 ABP Amoco Corporation · 1999
- Oligomerisation of olefinic compounds in an aliphatic medium50US 7,964,763 B2Sasol Technology (Pty) Ltd · 2011