B01J 31/2291
Olefins
Official title: {Olefins}
B01J31/2291 (Olefins) appears on 240 US grants and 145 published applications in this corpus.
Search patents in B01J- Granted patents
- 240
- Published applications
- 145
- Assignees
- 172
- Inventors
- 620
- Latest grant
- 17 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 6 | 0 |
| 1977 | 6 | 0 |
| 1978 | 7 | 0 |
| 1979 | 4 | 0 |
| 1980 | 7 | 0 |
| 1981 | 6 | 0 |
| 1982 | 5 | 0 |
| 1983 | 9 | 0 |
| 1984 | 5 | 0 |
| 1985 | 3 | 0 |
| 1986 | 1 | 0 |
| 1987 | 4 | 0 |
| 1988 | 1 | 0 |
| 1989 | 2 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 9 | 0 |
| 1993 | 8 | 0 |
| 1994 | 7 | 0 |
| 1995 | 9 | 0 |
| 1996 | 6 | 0 |
| 1997 | 3 | 0 |
| 1998 | 5 | 0 |
| 1999 | 7 | 0 |
| 2000 | 1 | 0 |
| 2001 | 5 | 1 |
| 2002 | 4 | 4 |
| 2003 | 4 | 6 |
| 2004 | 5 | 3 |
| 2005 | 4 | 5 |
| 2006 | 1 | 4 |
| 2007 | 7 | 2 |
| 2008 | 1 | 5 |
| 2009 | 1 | 4 |
| 2010 | 2 | 3 |
| 2011 | 5 | 4 |
| 2012 | 2 | 4 |
| 2013 | 5 | 4 |
| 2014 | 3 | 3 |
| 2015 | 2 | 5 |
| 2016 | 4 | 8 |
| 2017 | 7 | 7 |
| 2018 | 7 | 4 |
| 2019 | 6 | 11 |
| 2020 | 7 | 8 |
| 2021 | 7 | 12 |
| 2022 | 6 | 6 |
| 2023 | 5 | 6 |
| 2024 | 10 | 10 |
| 2025 | 3 | 12 |
| 2026 | 4 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Topical skin closure compositions and systems17 Mar 2026US 12,577,400 B2Ethicon, Inc.
- Air-stable ni(0)-olefin complexes and their use as catalysts or precatalysts24 Feb 2026US 12,558,677 B2Studiengesellschaft Kohle mbH
- Antimicrobial anhydrous topical skin closure compositions and systems20 Jan 2026US 12,528,913 B2Ethicon, Inc.
- Ylide-functionalised phosphanes for use in metal complexes and homogeneous catalysis13 Jan 2026US 12,521,704 B2Umicore AG & Co. KG
- Methods of arene alkenylation2 Sep 2025US 12,404,221 B2University of Virginia Patent Foundation
- Regio-controllable [2+2] benzannulation with two adjacent c(sp3)-h bonds20 Aug 2026US 2026/0242341 A1The Scripps Research Institute
- Process and catalyst composition for preparing organosilicon compounds via isomerization of internal olefins and hydrosilylation6 Aug 2026US 2026/0226081 A1Dow Silicones Corporation
- Ylide-functionalized phosphanes for use in metal complexes and homogeneous catalysis30 Apr 2026US 2026/0115706 A1Umicore AG & Co. KG
- Novel ruthenium complexes, method of their synthesis, intermediate compounds used in this method, method of their synthesis and use of novel ruthenium complexes in olefin metathesis reactions2 Apr 2026US 2026/0092080 A1Uniwersytet Warszawski
- Processes for converting unsaturated polyethylene to alkene products4 Dec 2025US 2025/0368586 A1Dow Global Technologies LLC
Most cited
By later US patents
- Platinum complex78US 4,288,345 AGeneral Electric Company · 1981
- Process for the preparation of ethanol from methanol69US 5,414,161 AKorea Institute of Science and Technology · 1995
- Platinum-styrene complexes which promote hydrosilation reactions65US 4,394,317 ASWS Silicones Corporation · 1983
- Ethylene oligomerization46US 4,482,640 APhillips Petroleum Company · 1984
- Preparation of hydrogen peroxide from its elements41US 4,347,232 AFMC Corporation · 1982