B01J 31/226
Sulfur
Official title: {Sulfur, e.g. thiocarbamates}
B01J31/226 (Sulfur) appears on 201 US grants and 182 published applications in this corpus.
Search patents in B01J- Granted patents
- 201
- Published applications
- 182
- Assignees
- 158
- Inventors
- 575
- Latest grant
- 12 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 2 | 0 |
| 1978 | 5 | 0 |
| 1979 | 2 | 0 |
| 1980 | 6 | 0 |
| 1981 | 6 | 0 |
| 1982 | 3 | 0 |
| 1983 | 1 | 0 |
| 1984 | 2 | 0 |
| 1985 | 3 | 0 |
| 1986 | 2 | 0 |
| 1987 | 3 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 3 | 0 |
| 1991 | 3 | 0 |
| 1992 | 3 | 0 |
| 1993 | 0 | 0 |
| 1994 | 4 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 2 | 0 |
| 1998 | 1 | 0 |
| 1999 | 3 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 2 | 1 |
| 2003 | 3 | 7 |
| 2004 | 5 | 10 |
| 2005 | 6 | 8 |
| 2006 | 7 | 7 |
| 2007 | 6 | 5 |
| 2008 | 4 | 5 |
| 2009 | 4 | 3 |
| 2010 | 3 | 9 |
| 2011 | 5 | 5 |
| 2012 | 7 | 3 |
| 2013 | 3 | 7 |
| 2014 | 2 | 10 |
| 2015 | 4 | 6 |
| 2016 | 9 | 6 |
| 2017 | 1 | 6 |
| 2018 | 11 | 9 |
| 2019 | 7 | 12 |
| 2020 | 11 | 10 |
| 2021 | 6 | 11 |
| 2022 | 9 | 12 |
| 2023 | 5 | 7 |
| 2024 | 14 | 10 |
| 2025 | 7 | 11 |
| 2026 | 3 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Carbamate production method, carbamate ester production method, and urea derivative production method12 May 2026US 12,623,999 B2National Institute of Advanced Industrial Science and Technology
- Ruthenium complexes, methods of their preparation and application thereof in olefin cross metathesis12 May 2026US 12,624,060 B2Apeiron Synthesis S. A.
- Ionic solid27 Jan 2026US 12,534,489 B2Japan Science and Technology Agency
- Catalyst for hydrogenation reaction and method for producing same2 Dec 2025US 12,485,407 B2Korea Advanced Institute of Science and Technology
- Catalyst for hydrogenation reaction and method for manufacturing the same2 Dec 2025US 12,485,408 B2Korea Advanced Institute of Science and Technology
- Surface plasmon resonance catalyst and chemical reaction system3 Sep 2026US 2026/0257189 A1Modern Value Inc.
- Cyclic olefin polymer having high cis double bond content15 Jan 2026US 2026/0015440 A1Board of Regents, The University of Texas System
- Catalyst for polyester depolymerization or cyclic ester synthesis, preparation method therefor and use thereof23 Oct 2025US 2025/0325970 A1Sichuan University
- Sabre catalysts containing fluorinated carbon chains for delivery of metal-free mri contrast agents31 Jul 2025US 2025/0242340 A1The United States of America, as represented by the Secretary, Department of Health and Human Servic
- Embedded slurry-phase hydrocracking catalyst particles, method of making and method of recycling waste plastics10 Jul 2025US 2025/0223505 A1Saudi Arabian Oil Company
Most cited
By later US patents
- Polymerization of .alpha.-olefins with transition metal catalysts based on bidentate ligands containing pyridine or quinoline moiety209US 5,637,660 ALyondell Petrochemical Company · 1997
- Metal nanocrystals and synthesis thereof117US 6,645,444 B2Nanospin Solutions · 2003
- Multimetallic sulfide catalyst containing noble metals for hydrodenitrogenation60US 5,278,121 AExxon Research & Engineering Co. · 1994
- Bridged bi-aromatic ligands, catalysts, processes for polymerizing and polymers therefrom55US 6,869,904 B2Symyx Technologies, Inc. · 2005
- Diolefin dimerization catalyst and method for producing nitrosyl halides of iron triad metals45US 4,234,454 APhillips Petroleum Company · 1980