B01J 2231/645
Of c=c or c-c triple bonds
Official title: of C=C or C-C triple bonds
B01J2231/645 (Of c=c or c-c triple bonds) appears on 575 US grants and 351 published applications in this corpus.
Search patents in B01J- Granted patents
- 575
- Published applications
- 351
- Assignees
- 301
- Inventors
- 1,274
- Latest grant
- 16 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 16 | 0 |
| 1977 | 5 | 0 |
| 1978 | 8 | 0 |
| 1979 | 10 | 0 |
| 1980 | 16 | 0 |
| 1981 | 15 | 0 |
| 1982 | 9 | 0 |
| 1983 | 6 | 0 |
| 1984 | 8 | 0 |
| 1985 | 8 | 0 |
| 1986 | 5 | 0 |
| 1987 | 8 | 0 |
| 1988 | 4 | 0 |
| 1989 | 5 | 0 |
| 1990 | 7 | 0 |
| 1991 | 10 | 0 |
| 1992 | 11 | 0 |
| 1993 | 24 | 0 |
| 1994 | 16 | 0 |
| 1995 | 9 | 0 |
| 1996 | 19 | 0 |
| 1997 | 4 | 0 |
| 1998 | 9 | 0 |
| 1999 | 20 | 0 |
| 2000 | 23 | 0 |
| 2001 | 18 | 5 |
| 2002 | 9 | 11 |
| 2003 | 19 | 20 |
| 2004 | 15 | 20 |
| 2005 | 14 | 20 |
| 2006 | 8 | 9 |
| 2007 | 15 | 15 |
| 2008 | 6 | 8 |
| 2009 | 8 | 13 |
| 2010 | 10 | 16 |
| 2011 | 8 | 15 |
| 2012 | 11 | 9 |
| 2013 | 9 | 13 |
| 2014 | 10 | 13 |
| 2015 | 10 | 24 |
| 2016 | 20 | 19 |
| 2017 | 16 | 12 |
| 2018 | 16 | 20 |
| 2019 | 15 | 11 |
| 2020 | 9 | 16 |
| 2021 | 9 | 14 |
| 2022 | 11 | 15 |
| 2023 | 11 | 8 |
| 2024 | 10 | 14 |
| 2025 | 9 | 8 |
| 2026 | 4 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Selective photocatalytic reduction of alkynes to alkenes powered by a cobalt-porphyrin metal-organic frameworks16 Jun 2026US 12,655,078 B2Northwestern University
- Enantioselective hydrogenation of 4-substituted 1,2-dihydroquinolines in presence of a chiral iridium catalyst2 Jun 2026US 12,643,860 B2Bayer Aktiengesellschaft
- Biologically applicable water-soluble heterogeneous catalysts for para-hydrogen induced polarization3 Mar 2026US 12,564,829 B2Cedars-Sinai Medical Center
- Selective photocatalytic reduction of alkynes to alkenes3 Feb 2026US 12,540,107 B2
- Catalyst for hydrogenation reaction and method for producing same2 Dec 2025US 12,485,407 B2Korea Advanced Institute of Science and Technology
- Selective semi-hydrogenation of allene24 Sep 2026US 2026/0284649 A1Firmenich SA
- Selective hydrogenation6 Aug 2026US 2026/0225090 A1Dsm IP Assets B.V.
- Enantioselective hydrogenation of 4-substituted 1,2-dihydroquinolines in presence of a chiral iridium catalyst15 Jan 2026US 2026/0015326 A1Bayer Aktiengesellschaft
- Group (viii) catalysts for production of green hydrogen and formic acid from methanol and its mechanism thereof23 Oct 2025US 2025/0325971 A1Indian Institute of Technology, Guwahati
- Unsupported bimetallic hydrogenation catalyst, its preparation and application thereof24 Jul 2025US 2025/0235857 A1China Petroleum & Chemical Corporation
Most cited
By later US patents
- Olefin hydrogenation catalyst, process for hydrogenating polymers with the catalyst, and hydrogenated block copolymers produced by said processes70US 4,673,714 AAsahi Kasei Kogyo Kabushiki Kaisha · 1987
- Preparation of colloidal iron dispersions by the polymer-catalyzed decomposition of iron carbonyl and iron organocarbonyl compounds69US 4,252,671 AXerox Corporation · 1981
- Dual functional catalyst of packing type and the catalytic distillation equipment62US 6,117,812 AChina Petro-Chemical Corporation · 2000
- Catalytic production of hydrogen peroxide61US 5,480,629 AThe Trustees of Princeton University · 1996
- Method of preparing a hydrogen-permeable membrane catalyst on a base of palladium or its alloys for the hydrogenation of unsaturated organic compounds60US 4,132,668 A1979