C01F 7/022
Classification
C01F7/022 (Classification) appears on 12 US grants and 15 published applications in this corpus.
Search patents in C01F- Granted patents
- 12
- Published applications
- 15
- Assignees
- 10
- Inventors
- 34
- Latest grant
- 24 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 1 |
| 2007 | 1 | 0 |
| 2008 | 0 | 1 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 1 |
| 2013 | 0 | 0 |
| 2014 | 1 | 0 |
| 2015 | 0 | 1 |
| 2016 | 1 | 0 |
| 2017 | 0 | 1 |
| 2018 | 1 | 2 |
| 2019 | 2 | 2 |
| 2020 | 1 | 0 |
| 2021 | 0 | 1 |
| 2022 | 1 | 0 |
| 2023 | 0 | 2 |
| 2024 | 0 | 2 |
| 2025 | 0 | 0 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Spherical alumina powder, resin composition, and heat dissipation material24 Mar 2026US 12,583,755 B2Denka Company Limited
- Plant medium including an oxygen-enabled composition4 Oct 2022US 11,458,161 B2Hemotek, LLC
- Plant medium including an oxygen-enabled composition22 Sep 2020US 10,780,110 B2Hemotek, LLC
- Preparation method of alumina-carbon nano tube composite powder material24 Sep 2019US 10,421,061 B2Hohai University
- Plant medium including an oxygen-enabled composition30 Apr 2019US 10,272,105 B2Hemotek, LLC
- Spherical alumina powder16 Jul 2026US 2026/0200751 A1Denka Company Limited
- Spherical alumina particles, method for producing same, and resin composition19 Sep 2024US 2024/0308867 A1Denka Company Limited
- Alumina particles and resin composition using same20 Jun 2024US 2024/0199436 A1Sumitomo Chemical Company, Limited
- Spherical alumina powder, resin composition, and heat dissipation material19 Oct 2023US 2023/0331572 A1Denka Company Limited
- Plant medium including an oxygen-enabled composition20 Apr 2023US 2023/0124172 A1
Most cited
By later US patents
- Plately alumina105US 5,277,702 ASt. Gobain/Norton Industrial Ceramics Corp. · 1994
- Process for producing modified alumina hydrate crystals18US 4,340,579 AVereinigte Aluminium-Werke Aktiengesellschaft · 1982
- Resinous compositions containing modified alumina hydrate crystals4US 4,421,876 AVereinigte Aluminium-Werke Aktiengesellschaft · 1983
- Plant medium including an oxygen-enabled composition2US 10,272,105 B2Hemotek, LLC · 2019
- Preparation method of alumina-carbon nano tube composite powder material1US 10,421,061 B2Hohai University · 2019