C01G 27/00
Compounds of hafnium
C01G27/00 (Compounds of hafnium) appears on 198 US grants and 205 published applications in this corpus.
Search patents in C01G- Granted patents
- 198
- Published applications
- 205
- Assignees
- 146
- Inventors
- 595
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 2 | 0 |
| 1980 | 2 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 3 | 0 |
| 1987 | 6 | 0 |
| 1988 | 5 | 0 |
| 1989 | 11 | 0 |
| 1990 | 10 | 0 |
| 1991 | 4 | 0 |
| 1992 | 3 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 2 | 0 |
| 1996 | 3 | 0 |
| 1997 | 0 | 0 |
| 1998 | 2 | 0 |
| 1999 | 1 | 0 |
| 2000 | 2 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 2 |
| 2003 | 2 | 4 |
| 2004 | 0 | 9 |
| 2005 | 3 | 7 |
| 2006 | 5 | 14 |
| 2007 | 6 | 7 |
| 2008 | 2 | 6 |
| 2009 | 5 | 7 |
| 2010 | 4 | 11 |
| 2011 | 4 | 9 |
| 2012 | 6 | 11 |
| 2013 | 4 | 10 |
| 2014 | 3 | 2 |
| 2015 | 12 | 12 |
| 2016 | 5 | 10 |
| 2017 | 6 | 7 |
| 2018 | 10 | 5 |
| 2019 | 11 | 9 |
| 2020 | 7 | 10 |
| 2021 | 2 | 13 |
| 2022 | 8 | 8 |
| 2023 | 11 | 8 |
| 2024 | 11 | 10 |
| 2025 | 3 | 6 |
| 2026 | 4 | 8 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Garnet-type lithium-ion solid-state conductor6 Oct 2026US 12,756,004 B2Samsung Electronics Co., Ltd.
- Metal oxide thin film precursor, method of fabricating metal oxide thin film using the same, and semiconductor device including the metal oxide thin film29 Sep 2026US 12,747,258 B2University-Industry Cooperation Group of Kyung Hee University
- Lithium-ion solid state conductor including lithium hafnium metal phosphate, electrode and battery including the conductor, methods of manufacture thereof11 Aug 2026US 12,706,323 B2Samsung Electronics Co., Ltd.
- Method for recovering hafnium and impurity metals from hafnium-containing waste residue14 Jul 2026US 12,680,145 B2Jiangxi Zhongha New Material Co., Ltd.
- Reducing agent and method for producing gas7 Oct 2025US 12,434,226 B2Sekisui Chemical Co., Ltd.
- Dielectric, capacitor, electric circuit, circuit board, apparatus, and power storage device27 Aug 2026US 2026/0250146 A1Panasonic Intellectual Property Management Co., Ltd.
- Hafnium-acid-compound-containing material and method for producing same6 Aug 2026US 2026/0225908 A1Mitsui Kinzoku Company, Limited
- Solid-state electrolyte, method of preparing solid-state electrolyte and lithium battery including solid-state electrolyte25 Jun 2026US 2026/0180025 A1Samsung Electronics Co., Ltd.
- Components with pyrochlore/defect fluorite zirconates28 May 2026US 2026/0146167 A1General Electric Company
- Chalcogenide perovskite14 May 2026US 2026/0132045 A1Idemitsu Kosan Co., Ltd.
Most cited
By later US patents
- Plasma synthesis of metal oxide nanoparticles77US 7,217,407 B2E. I. Du Pont de Nemours and Company · 2007
- Hydrous zirconium oxide, hydrous hafnium oxide and method of making same69US 7,252,767 B2Magnesium Elektron Limited · 2007
- Ceria-based mixed-metal oxide structure, including method of making and use58US 7,166,263 B2UTC Fuel Cells, LLC · 2007
- Garnet-type solid electrolyte, secondary battery containing garnet-type solid electrolyte, and method of producing garnet-type solid electrolyte55US 9,034,526 B2Shinshu University · 2015
- Vapor deposition of metal oxides, silicates and phosphates, and silicon dioxide54US 6,969,539 B2President and Fellows of Harvard College · 2005