B01J 2229/37
Acid treatment
B01J2229/37 (Acid treatment) appears on 375 US grants and 368 published applications in this corpus.
Search patents in B01J- Granted patents
- 375
- Published applications
- 368
- Assignees
- 175
- Inventors
- 924
- Latest grant
- 30 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 3 | 0 |
| 1982 | 4 | 0 |
| 1983 | 2 | 0 |
| 1984 | 1 | 0 |
| 1985 | 3 | 0 |
| 1986 | 2 | 0 |
| 1987 | 3 | 0 |
| 1988 | 3 | 0 |
| 1989 | 6 | 0 |
| 1990 | 3 | 0 |
| 1991 | 9 | 0 |
| 1992 | 8 | 0 |
| 1993 | 9 | 0 |
| 1994 | 5 | 0 |
| 1995 | 3 | 0 |
| 1996 | 4 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 4 | 0 |
| 2000 | 7 | 0 |
| 2001 | 3 | 0 |
| 2002 | 4 | 5 |
| 2003 | 5 | 5 |
| 2004 | 4 | 10 |
| 2005 | 6 | 7 |
| 2006 | 8 | 11 |
| 2007 | 5 | 6 |
| 2008 | 7 | 12 |
| 2009 | 6 | 11 |
| 2010 | 6 | 11 |
| 2011 | 5 | 19 |
| 2012 | 3 | 12 |
| 2013 | 6 | 28 |
| 2014 | 7 | 27 |
| 2015 | 15 | 31 |
| 2016 | 19 | 22 |
| 2017 | 39 | 13 |
| 2018 | 23 | 13 |
| 2019 | 23 | 18 |
| 2020 | 18 | 18 |
| 2021 | 24 | 25 |
| 2022 | 14 | 16 |
| 2023 | 14 | 13 |
| 2024 | 12 | 13 |
| 2025 | 6 | 14 |
| 2026 | 9 | 8 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method for preparing a zeolite-based catalyst having an mfi structural code with improved density and mechanical strength30 Jun 2026US 12,667,830 B2Ifp Energies Nouvelles
- Molecular sieve SSZ-113 with high acidity, its synthesis and use2 Jun 2026US 12,643,796 B2Chevron U. S. A. Inc.
- Solid-acid catalyzed paraffin alkylation with rare earth-modified molecular sieve adsorbents19 May 2026US 12,630,489 B2Exelus, Inc.
- Mesoporous zeolites and uses thereof in dewaxing hydrocarbon feeds28 Apr 2026US 12,611,659 B2Zeopore Technologies NV
- Catalytic cracking additive, preparation method therefor, and application thereof28 Apr 2026US 12,612,563 B2China Petroleum & Chemical Corporation
- Preparation of meso-y-zeolite with large mesopores1 Oct 2026US 2026/0295568 A1Chevron U.S.A.Inc.
- Molecular sieve ssz-113 with high acidity, its synthesis and use13 Aug 2026US 2026/0234008 A1Chevron U.S.A.Inc.
- Methods for making nano-sized mesoporous zeolite beta that utilize acid treatments9 Jul 2026US 2026/0192291 A1Saudi Arabian Oil Company
- Production of metal ion-exchaned molecular sieve18 Jun 2026US 2026/0166534 A1Johnson Matthey Public Limited Company
- Process for obtaining hydrocarbons, and associated plant14 May 2026US 2026/0132094 A1Totalenergies Onetech
Most cited
By later US patents
- Crystalline silicates and method of preparing the same142US 3,941,871 AMobil Oil Corporation · 1976
- Catalytic reactions using zeolites70US 5,178,748 AImperial Chemical Industries PLC · 1993
- Olefin oligomerization with surface modified zeolite catalyst63US 5,026,933 AMobil Oil Corporation · 1991
- Catalytic reactions using zeolites55US 5,345,021 AImperial Chemical Industries PLC · 1994
- Olefin oligomerization with surface modified zeolite catalyst53US 4,870,038 AMobil Oil Corporation · 1989