C08F 4/025
Metal oxides
Official title: {Metal oxides}
C08F4/025 (Metal oxides) appears on 76 US grants and 83 published applications in this corpus.
Search patents in C08F- Granted patents
- 76
- Published applications
- 83
- Assignees
- 38
- Inventors
- 273
- Latest grant
- 24 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 5 | 0 |
| 2001 | 3 | 0 |
| 2002 | 2 | 3 |
| 2003 | 2 | 2 |
| 2004 | 2 | 1 |
| 2005 | 3 | 1 |
| 2006 | 1 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 1 |
| 2010 | 0 | 0 |
| 2011 | 1 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 3 |
| 2014 | 1 | 1 |
| 2015 | 5 | 5 |
| 2016 | 4 | 4 |
| 2017 | 2 | 5 |
| 2018 | 3 | 5 |
| 2019 | 6 | 4 |
| 2020 | 3 | 4 |
| 2021 | 3 | 3 |
| 2022 | 0 | 2 |
| 2023 | 4 | 12 |
| 2024 | 8 | 14 |
| 2025 | 8 | 10 |
| 2026 | 6 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Olefin-based polymer, film prepared therefrom, and preparation methods therefor24 Mar 2026US 12,583,956 B2Hanwha Solutions Corporation
- Aqueous methods for titanating a chromium/silica catalyst with an alkali metal10 Mar 2026US 12,570,770 B2Chevron Phillips Chemical Company LP
- Modifications of sulfated bentonites and uses thereof in metallocene catalyst systems for olefin polymerization3 Mar 2026US 12,565,543 B2Chevron Phillips Chemical Company LP
- Particle size control of silyl chromate catalysts and uses thereof in fluidized bed reactors3 Mar 2026US 12,565,545 B2Chevron Phillips Chemical Company LP
- Olefin-based polymer, film prepared therefrom, and preparation methods therefor17 Feb 2026US 12,552,886 B2Hanwha Solutions Corporation
- High porosity fluorided silica-coated alumina activator-supports and uses thereof in metallocene-based catalyst systems for olefin polymerization30 Jul 2026US 2026/0217873 A1Chevron Phillips Chemical Company LP
- Modifications of sulfated bentonites and uses thereof in metallocene catalyst systems for olefin polymerization4 Jun 2026US 2026/0152582 A1Chevron Phillips Chemical Company LP
- Aqueous methods for titanating a chromium/silica catalyst with an alkali metal21 May 2026US 2026/0139078 A1Chevron Phillips Chemical Company LP
- Aqueous methods for titanating a chromium/silica catalyst with an alkali metal13 Nov 2025US 2025/0346688 A1Chevron Phillips Chemical Company LP
- Modifications of sulfated bentonites and uses thereof in metallocene catalyst systems for olefin polymerization18 Sep 2025US 2025/0289911 A1Chevron Phillips Chemical Company LP
Most cited
By later US patents
- Organometal catalyst compositions262US 6,632,894 B1Phillips Petroleum Company · 2003
- 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
- Non-aged inorganic oxide-containing aerogels and their preparation88US 4,619,908 AStauffer Chemical Company · 1986
- Methods of preparing a catalyst55US 10,287,369 B2Chevron Phillips Chemical Company LP · 2019
- Supported catalyst containing tethered cation forming activator55US 6,087,293 AThe Dow Chemical Company · 2000