C01B 37/02
Crystalline silica-polymorphs
Official title: Crystalline silica-polymorphs, e.g. silicalites {dealuminated aluminosilicate zeolites}
C01B37/02 (Crystalline silica-polymorphs) appears on 536 US grants and 444 published applications in this corpus.
Search patents in C01B- Granted patents
- 536
- Published applications
- 444
- Assignees
- 247
- Inventors
- 1,065
- Latest grant
- 19 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 5 | 0 |
| 1982 | 3 | 0 |
| 1983 | 3 | 0 |
| 1984 | 2 | 0 |
| 1985 | 7 | 0 |
| 1986 | 8 | 0 |
| 1987 | 7 | 0 |
| 1988 | 3 | 0 |
| 1989 | 7 | 0 |
| 1990 | 5 | 0 |
| 1991 | 4 | 0 |
| 1992 | 13 | 0 |
| 1993 | 22 | 0 |
| 1994 | 13 | 0 |
| 1995 | 4 | 0 |
| 1996 | 9 | 0 |
| 1997 | 11 | 0 |
| 1998 | 9 | 0 |
| 1999 | 13 | 0 |
| 2000 | 16 | 0 |
| 2001 | 14 | 4 |
| 2002 | 13 | 17 |
| 2003 | 28 | 22 |
| 2004 | 15 | 20 |
| 2005 | 13 | 29 |
| 2006 | 23 | 22 |
| 2007 | 3 | 28 |
| 2008 | 10 | 27 |
| 2009 | 13 | 21 |
| 2010 | 25 | 24 |
| 2011 | 23 | 30 |
| 2012 | 13 | 13 |
| 2013 | 23 | 17 |
| 2014 | 15 | 19 |
| 2015 | 15 | 20 |
| 2016 | 15 | 15 |
| 2017 | 16 | 10 |
| 2018 | 16 | 15 |
| 2019 | 15 | 21 |
| 2020 | 18 | 12 |
| 2021 | 10 | 11 |
| 2022 | 7 | 7 |
| 2023 | 8 | 6 |
| 2024 | 9 | 16 |
| 2025 | 3 | 13 |
| 2026 | 4 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Extra-large pore molecular sieve ZEO-1, its synthesis and use19 May 2026US 12,630,434 B2Jilin Jinobel Science and Technology Innovation Co., Ltd.
- Spherical titanium silicalite molecular sieve catalyst and preparation method therefor31 Mar 2026US 12,589,383 B2Shanghai Huayi New Material Co., Ltd
- Sinter resistant metal species in zeolites27 Jan 2026US 12,533,665 B2ExxonMobil Technology and Engineering Company
- Two-dimensional mesoporous superlattices of inorganic materials and method of making and using same20 Jan 2026US 12,528,705 B2Cornell University
- Method for manufacture of pure silica zeolites in the presence of ODSO7 Oct 2025US 12,434,975 B2Saudi Arabian Oil Company
- Silicalite-1 crystals and process for synthesis thereof6 Aug 2026US 2026/0225902 A1Arkema France
- Hierarchical porous all-silica molecular sieve and its preparation method and application25 Jun 2026US 2026/0175205 A1China Petroleum & Chemical Corporation
- Synthesis of Zeolite Nanosheets from Mining Waste4 Jun 2026US 2026/0152404 A1
- Sinter resistant metal species in zeolites14 May 2026US 2026/0131317 A1ExxonMobil Technology and Engineering Company
- Hierarchically ordered crystalline microporous materials with long-range mesoporous order having lamellar symmetry26 Feb 2026US 2026/0055000 A1King Abdullah University of Science and Technology
Most cited
By later US patents
- Crystalline silica263US 4,061,724 AUnion Carbide Corporation · 1977
- Molecularly-imprinted material made by template-directed synthesis251US 6,310,110 B12001
- Composition of synthetic porous crystalline material, its synthesis183US 5,102,643 AMobil Oil Corporation · 1992
- Synthetic mesoporous crystaline material177US 5,098,684 AMobil Oil Corporation · 1992
- Zeolite ITQ-1169US 6,077,498 AConsejo Superior Investigaciones Cientificas · 2000