B01J 2540/34
Sulfonyl groups
B01J2540/34 (Sulfonyl groups) appears on 42 US grants and 42 published applications in this corpus.
Search patents in B01J- Granted patents
- 42
- Published applications
- 42
- Assignees
- 27
- Inventors
- 74
- Latest grant
- 13 Jan 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 2 | 0 |
| 1980 | 0 | 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 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 2 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 2 | 2 |
| 2003 | 1 | 0 |
| 2004 | 1 | 3 |
| 2005 | 1 | 3 |
| 2006 | 1 | 1 |
| 2007 | 3 | 3 |
| 2008 | 1 | 0 |
| 2009 | 2 | 0 |
| 2010 | 2 | 1 |
| 2011 | 1 | 0 |
| 2012 | 1 | 1 |
| 2013 | 0 | 2 |
| 2014 | 1 | 0 |
| 2015 | 0 | 2 |
| 2016 | 2 | 1 |
| 2017 | 1 | 0 |
| 2018 | 0 | 5 |
| 2019 | 4 | 1 |
| 2020 | 1 | 4 |
| 2021 | 4 | 4 |
| 2022 | 3 | 1 |
| 2023 | 2 | 4 |
| 2024 | 1 | 2 |
| 2025 | 0 | 1 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Ylide-functionalised phosphanes for use in metal complexes and homogeneous catalysis13 Jan 2026US 12,521,704 B2Umicore AG & Co. KG
- Chromium complex and catalyst therefrom13 Feb 2024US 11,896,965 B2Dow Global Technologies LLC
- Highly efficient synthesis of Z-macrocycles using stereoretentive, ruthenium-based metathesis catalysts7 Nov 2023US 11,807,617 B2California Institute of Technology
- Process for oligomerization11 Apr 2023US 11,623,209 B2Dow Global Technologies LLC
- Chromium complex and catalyst therefrom8 Nov 2022US 11,491,474 B2Dow Global Technologies LLC
- Ylide-functionalized phosphanes for use in metal complexes and homogeneous catalysis30 Apr 2026US 2026/0115706 A1Umicore AG & Co. KG
- Ligand Compound, Organic Chromium Compound, and Catalyst Composition Including the Same30 Oct 2025US 2025/0333427 A1LG Chem.Ltd.
- Diruthenium Catalyst Compositions and Synthetic Processes Related Thereto13 Jun 2024US 2024/0190804 A1Emory University
- Ylide-functionalised phosphanes for use in metal complexes and homogeneous catalysis9 May 2024US 2024/0149256 A1Umicore AG & Co. KG
- Metal complex or adduct thereof, catalyst comprising metal complex or adduct thereof and method for producing same, liquid composition or electrode containing catalyst, and air battery or fuel cell equipped with electrode28 Sep 2023US 2023/0303606 A1AZUL Energy Inc.
Most cited
By later US patents
- Catalytic oxidation of mercaptan in petroleum distillate including quaternary ammonium hydroxide34US 4,156,641 AUop LLC · 1979
- Transfer hydrogenation process and catalyst32US 6,372,931 B1Avecia Limited · 2002
- Transfer hydrogenation process and catalyst26US 7,250,526 B2NPIL Pharmaceuticals (UK) Limited · 2007
- Transfer hydrogenation process and catalyst25US 6,545,188 B2Avecia Limited · 2003
- Recyclable ruthenium catalysts for metathesis reactions24US 8,049,025 B2Zannan Scitech Co., Ltd. · 2011