B01J 27/053
Sulfates
B01J27/053 (Sulfates) appears on 518 US grants and 412 published applications in this corpus.
Search patents in B01J- Granted patents
- 518
- Published applications
- 412
- Assignees
- 344
- Inventors
- 1,412
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 6 | 0 |
| 1977 | 1 | 0 |
| 1978 | 5 | 0 |
| 1979 | 4 | 0 |
| 1980 | 4 | 0 |
| 1981 | 6 | 0 |
| 1982 | 6 | 0 |
| 1983 | 10 | 0 |
| 1984 | 4 | 0 |
| 1985 | 6 | 0 |
| 1986 | 2 | 0 |
| 1987 | 4 | 0 |
| 1988 | 3 | 0 |
| 1989 | 5 | 0 |
| 1990 | 13 | 0 |
| 1991 | 2 | 0 |
| 1992 | 9 | 0 |
| 1993 | 17 | 0 |
| 1994 | 4 | 0 |
| 1995 | 5 | 0 |
| 1996 | 10 | 0 |
| 1997 | 9 | 0 |
| 1998 | 10 | 0 |
| 1999 | 8 | 0 |
| 2000 | 11 | 0 |
| 2001 | 14 | 1 |
| 2002 | 11 | 6 |
| 2003 | 8 | 11 |
| 2004 | 8 | 12 |
| 2005 | 7 | 17 |
| 2006 | 12 | 11 |
| 2007 | 9 | 10 |
| 2008 | 11 | 14 |
| 2009 | 5 | 14 |
| 2010 | 11 | 24 |
| 2011 | 16 | 19 |
| 2012 | 9 | 16 |
| 2013 | 14 | 13 |
| 2014 | 17 | 26 |
| 2015 | 11 | 26 |
| 2016 | 24 | 22 |
| 2017 | 19 | 27 |
| 2018 | 20 | 22 |
| 2019 | 24 | 19 |
| 2020 | 17 | 29 |
| 2021 | 27 | 20 |
| 2022 | 16 | 12 |
| 2023 | 13 | 15 |
| 2024 | 18 | 15 |
| 2025 | 6 | 8 |
| 2026 | 7 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Catalytic hydrogenolysis of a polymer25 Aug 2026US 12,715,826 B2Northwestern University
- Process for the catalytic production of an analogue of methionine28 Jul 2026US 12,692,226 B2Adisseo France S.A.S.
- Process for the removal of particulate matter from an aqueous stream14 Apr 2026US 12,599,858 B2Topsoe A/S
- Inorganic solid silicon-based sulfonic acid and/or phosphoric acid catalyst, preparation method therefor, and application thereof24 Mar 2026US 12,582,970 B2Xiangtan University
- Composition for coating an overhead conductor3 Mar 2026US 12,565,598 B2Cable Coatings Limited
- Methods for producing 1,1-difluoropropene (hfo-1252zc) from vinylidene fluoride1 Oct 2026US 2026/0296997 A1
- Process-scale synthesis of urolithin a23 Apr 2026US 2026/0109681 A1Amazentis SA
- Ruthenium catalysts and methods thereof8 Jan 2026US 2026/0008037 A1The Regents of the University of California
- Catalytic hydrogenolysis of a polymer31 Jul 2025US 2025/0243134 A1Northwestern University
- Exhaust gas purification catalyst, method for purifying exhaust gas, and method for producing exhaust gas purification catalyst24 Jul 2025US 2025/0235824 A1Umicore Shokubai Japan Co., Ltd.
Most cited
By later US patents
- Compositions that can produce polymers334US 6,300,271 B1Phillips Petroleum Company · 2001
- Silica-coated alumina activator-supports for metallocene catalyst compositions292US 7,884,163 B2Chevron Phillips Chemical Company LP · 2011
- Compositions that can produce polymers252US 7,601,665 B2Chevron Phillips Chemical Company LP · 2009
- Methods for producing fluorided-chlorided silica-coated alumina activator-supports and catalyst systems containing the same146US 9,023,959 B2Chevron Phillips Chemical Company LP · 2015
- Catalytic multi-stage process for hydroconversion and refining hydrocarbon feeds140US 6,190,542 B1Hydrocarbon Technologies, Inc. · 2001