C01B 39/44
Ferrierite type
Official title: Ferrierite type, e.g. types ZSM-21, ZSM-35 or ZSM-38
C01B39/44 (Ferrierite type) appears on 69 US grants and 49 published applications in this corpus.
Search patents in C01B- Granted patents
- 69
- Published applications
- 49
- Assignees
- 51
- Inventors
- 189
- Latest grant
- 7 Oct 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 2 | 0 |
| 1978 | 3 | 0 |
| 1979 | 2 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 2 | 0 |
| 1987 | 3 | 0 |
| 1988 | 1 | 0 |
| 1989 | 2 | 0 |
| 1990 | 2 | 0 |
| 1991 | 1 | 0 |
| 1992 | 2 | 0 |
| 1993 | 1 | 0 |
| 1994 | 3 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 1 |
| 2003 | 0 | 0 |
| 2004 | 1 | 0 |
| 2005 | 1 | 0 |
| 2006 | 0 | 0 |
| 2007 | 1 | 1 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 1 |
| 2011 | 0 | 0 |
| 2012 | 0 | 2 |
| 2013 | 1 | 1 |
| 2014 | 0 | 1 |
| 2015 | 1 | 8 |
| 2016 | 2 | 6 |
| 2017 | 4 | 2 |
| 2018 | 2 | 4 |
| 2019 | 7 | 4 |
| 2020 | 3 | 4 |
| 2021 | 4 | 3 |
| 2022 | 1 | 2 |
| 2023 | 4 | 3 |
| 2024 | 0 | 2 |
| 2025 | 1 | 1 |
| 2026 | 0 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Synthesis of finned zeolite crystals7 Oct 2025US 12,434,974 B2University of Houston System
- Functional structural body and method for making functional structural body23 May 2023US 11,655,157 B2Furukawa Electric Co., Ltd.
- Catalyst for gasoline synthesis from dimethyl ether, method for preparing the same, and method for preparing gasoline using the same16 May 2023US 11,648,539 B2Hyundai Motor Company
- Method of synthesizing an aluminosilicate molecular sieve by a crystal seed-assisted method25 Apr 2023US 11,634,334 B2China University of Petroleum-Beijing
- Process for preparing a zeolitic material having a framework type FER17 Jan 2023US 11,554,964 B2BASF SE
- Ferrierite (fer)-type zeolites and the uses thereof30 Jul 2026US 2026/0216711 A1Braskem America, Inc.
- Zeolite shaped bodies12 Feb 2026US 2026/0042079 A1Tosoh Corporation
- Synthesis of finned zeolite crystals29 Jan 2026US 2026/0028236 A1University of Houston System
- Organo-template free fer synthesis10 Jul 2025US 2025/0222442 A1Johnson Matthey Public Limited Company
- Tandem catalyst for synthesizing methyl acetate from carbon dioxide, method for preparing same, and method for preparing methyl acetate using same11 Jul 2024US 2024/0228420 A9Research & Business Foundation Sungkyunkwan University
Most cited
By later US patents
- Crystalline zeolite and method of preparing same308US 4,016,245 AMobil Oil Corporation · 1977
- Crystalline zeolite and method of preparing same71US 4,046,859 AMobil Oil Corporation · 1977
- Hydrocarbon conversion61US 3,992,466 AMobil Oil Corporation · 1976
- Synthesis of crystalline aluminosilicate molecular sieves56US 4,377,502 AStandard Oil Company (Indiana) · 1983
- Crystalline molecular sieves47US 7,264,789 B1ExxonMobil Chemical Patents Inc. · 2007