C07C 2521/16
Clays or other mineral silicates
C07C2521/16 (Clays or other mineral silicates) appears on 280 US grants and 132 published applications in this corpus.
Search patents in C07C- Granted patents
- 280
- Published applications
- 132
- Assignees
- 114
- Inventors
- 606
- Latest grant
- 3 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 2 | 0 |
| 1978 | 6 | 0 |
| 1979 | 4 | 0 |
| 1980 | 2 | 0 |
| 1981 | 6 | 0 |
| 1982 | 2 | 0 |
| 1983 | 4 | 0 |
| 1984 | 12 | 0 |
| 1985 | 13 | 0 |
| 1986 | 6 | 0 |
| 1987 | 8 | 0 |
| 1988 | 3 | 0 |
| 1989 | 11 | 0 |
| 1990 | 3 | 0 |
| 1991 | 13 | 0 |
| 1992 | 19 | 0 |
| 1993 | 10 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 3 | 0 |
| 1997 | 2 | 0 |
| 1998 | 9 | 0 |
| 1999 | 4 | 0 |
| 2000 | 7 | 0 |
| 2001 | 4 | 2 |
| 2002 | 5 | 2 |
| 2003 | 5 | 7 |
| 2004 | 4 | 5 |
| 2005 | 5 | 4 |
| 2006 | 2 | 3 |
| 2007 | 4 | 5 |
| 2008 | 3 | 4 |
| 2009 | 2 | 7 |
| 2010 | 4 | 6 |
| 2011 | 5 | 7 |
| 2012 | 7 | 11 |
| 2013 | 7 | 16 |
| 2014 | 7 | 12 |
| 2015 | 11 | 4 |
| 2016 | 11 | 4 |
| 2017 | 7 | 3 |
| 2018 | 6 | 3 |
| 2019 | 6 | 6 |
| 2020 | 2 | 3 |
| 2021 | 5 | 4 |
| 2022 | 0 | 4 |
| 2023 | 4 | 3 |
| 2024 | 7 | 7 |
| 2025 | 1 | 0 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Catalyst and method for producing diene compound3 Mar 2026US 12,564,828 B2Sekisui Chemical Co., Ltd.
- Synthesis gas to hydrocarbon processes with neutral or negative carbon dioxide selectivity7 Oct 2025US 12,435,012 B2Dow Global Technologies LLC
- Carbon dioxide reduction method with red mud catalyst24 Sep 2024US 12,098,112 B1King Fahd University of Petroleum and Minerals
- Method for forming olefins from carbon dioxide24 Sep 2024US 12,098,113 B1King Fahd University of Petroleum and Minerals
- Method for converting carbon dioxide with red mud catalyst17 Sep 2024US 12,091,372 B1King Fahd University of Petroleum and Minerals
- Method for converting carbon dioxide with red mud catalyst19 Sep 2024US 2024/0308933 A1King Fahd University of Petroleum and Minerals
- Carbon dioxide reduction method with red mud catalyst19 Sep 2024US 2024/0308934 A1King Fahd University of Petroleum and Minerals
- Method for forming olefins from carbon dioxide19 Sep 2024US 2024/0308935 A1King Fahd University of Petroleum and Minerals
- Method and System for Light Olefin Generation with High Yields and Selectivity19 Sep 2024US 2024/0308938 A1ExxonMobil Chemical Patents Inc.
- Solid oxide and chemically-treated solid oxide catalysts for the production of polyalphaolefins20 Jun 2024US 2024/0199510 A1Chevron Phillips Chemical Company LP
Most cited
By later US patents
- Chemical conversion process107US 4,861,938 AUop LLC · 1989
- Conversion of synthesis gas using a cobalt-ruthenium catalyst90US 4,088,671 AGulf Research & Development Company · 1978
- Process for the production of olefins by combined methane oxidative coupling/hydrocarbon pyrolysis82US 5,118,898 ACommonwealth Scientific and Industrial Research Organization · 1992
- Conversion of a lower alkane81US 4,754,091 AAmoco Corporation · 1988
- Process for upgrading light hydrocarbons using oxidative coupling and pyrolysis81US 5,012,028 AThe Standard Oil Company · 1991