C07C 2531/18
Containing nitrogen, phosphorus, arsenic or antimony
Official title: containing nitrogen, phosphorus, arsenic or antimony
C07C2531/18 (Containing nitrogen, phosphorus, arsenic or antimony) appears on 104 US grants and 119 published applications in this corpus.
Search patents in C07C- Granted patents
- 104
- Published applications
- 119
- Assignees
- 63
- Inventors
- 254
- Latest grant
- 24 Feb 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 1 | 0 |
| 1980 | 2 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 1 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 1 | 0 |
| 2008 | 0 | 1 |
| 2009 | 0 | 0 |
| 2010 | 0 | 1 |
| 2011 | 1 | 1 |
| 2012 | 0 | 2 |
| 2013 | 3 | 5 |
| 2014 | 1 | 7 |
| 2015 | 6 | 10 |
| 2016 | 7 | 15 |
| 2017 | 13 | 13 |
| 2018 | 9 | 20 |
| 2019 | 23 | 8 |
| 2020 | 5 | 6 |
| 2021 | 8 | 3 |
| 2022 | 5 | 14 |
| 2023 | 7 | 6 |
| 2024 | 3 | 2 |
| 2025 | 2 | 2 |
| 2026 | 1 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Methods for increasing hydroformylation catalyst preforming rates24 Feb 2026US 12,559,447 B2ExxonMobil Chemical Patents Inc.
- Methods for reducing fouling in upgrading reactors7 Oct 2025US 12,435,015 B2Dow Global Technologies LLC
- Catalyst systems suitable for the tetramerization of ethylene and methods of using the same22 Jul 2025US 12,364,976 B2Saudi Arabian Oil Company
- Depolymerization of oligomers and polymers comprising cyclobutane units31 Dec 2024US 12,180,149 B2The Trustees of Princeton University
- Heat exchange configurations for oligomerization of olefins15 Oct 2024US 12,116,330 B2Chevron Phillips Chemical Company LP
- Selective olefin oligomerization with transition metal amine bis(phenolate) catalysts8 Oct 2026US 2026/0308083 A1Chevron Phillips Chemical Company LP
- Novel iron-based compounds, processes for the preparation thereof, and use thereof as catalysts16 Jul 2026US 2026/0200963 A1Centre National De La Recherche Scientifique
- Photocatalysts, preparation and use thereof4 Dec 2025US 2025/0367649 A1The Royal Institution for the Advancement of Learning/Mcgill University
- Process for the selective catalytic hydrogenation of dienones6 Mar 2025US 2025/0074854 A1BASF SE
- Pincer-based cobalt catalysts for hydrogenation reaction and its process of preparation thereof26 Dec 2024US 2024/0424489 A1
Most cited
By later US patents
- Ethylene trimerization100US 5,811,618 AAmoco Corporation · 1998
- Ethylene trimerization63US 5,968,866 ABP Amoco Corporation · 1999
- Diolefin dimerization catalyst and method for producing nitrosyl halides of iron triad metals45US 4,234,454 APhillips Petroleum Company · 1980
- Synthesis of terminal alkenes from internal alkenes and ethylene via olefin metathesis29US 8,067,610 B22011
- Olefin compositions21US 10,435,336 B2Chevron Phillips Chemical Company LP · 2019