C01B 3/0047
Containing a rare earth metal
Official title: containing a rare earth metal
C01B3/0047 (Containing a rare earth metal) appears on 244 US grants and 142 published applications in this corpus.
Search patents in C01B- Granted patents
- 244
- Published applications
- 142
- Assignees
- 152
- Inventors
- 624
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 3 | 0 |
| 1979 | 6 | 0 |
| 1980 | 6 | 0 |
| 1981 | 4 | 0 |
| 1982 | 2 | 0 |
| 1983 | 10 | 0 |
| 1984 | 5 | 0 |
| 1985 | 2 | 0 |
| 1986 | 7 | 0 |
| 1987 | 4 | 0 |
| 1988 | 4 | 0 |
| 1989 | 4 | 0 |
| 1990 | 3 | 0 |
| 1991 | 2 | 0 |
| 1992 | 3 | 0 |
| 1993 | 1 | 0 |
| 1994 | 4 | 0 |
| 1995 | 5 | 0 |
| 1996 | 6 | 0 |
| 1997 | 6 | 0 |
| 1998 | 11 | 0 |
| 1999 | 12 | 0 |
| 2000 | 10 | 0 |
| 2001 | 15 | 5 |
| 2002 | 8 | 13 |
| 2003 | 6 | 4 |
| 2004 | 8 | 4 |
| 2005 | 1 | 11 |
| 2006 | 3 | 12 |
| 2007 | 4 | 9 |
| 2008 | 4 | 6 |
| 2009 | 5 | 14 |
| 2010 | 8 | 8 |
| 2011 | 5 | 9 |
| 2012 | 8 | 5 |
| 2013 | 9 | 5 |
| 2014 | 3 | 3 |
| 2015 | 6 | 2 |
| 2016 | 4 | 1 |
| 2017 | 1 | 3 |
| 2018 | 2 | 3 |
| 2019 | 4 | 0 |
| 2020 | 1 | 3 |
| 2021 | 1 | 2 |
| 2022 | 3 | 5 |
| 2023 | 0 | 5 |
| 2024 | 3 | 7 |
| 2025 | 6 | 2 |
| 2026 | 4 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Hydrogen storage material, hydrogen storage container, and hydrogen supply apparatus22 Sep 2026US 12,741,866 B2Santoku Corporation
- Lithiation induced porous Pd nanoparticle/3D Graphene aerogel composite for highly reversible hydrogen storage based on spillover process11 Aug 2026US 12,703,626 B2Korea Advanced Institute of Science and Technology
- Heat generation device, heat utilization system and film-like heat generation element5 May 2026US 12,618,592 B2Clean Planet Inc.
- Hydrogen storage material, hydrogen storage container, and hydrogen supply apparatus31 Mar 2026US 12,590,355 B2Santoku Corporation
- AB2 type-based hydrogen storage alloys, methods of preparation and uses thereof7 Oct 2025US 12,435,397 B2Grz Technologies SA
- Device for in-situ hydrogen absorption and hydrolysis hydrogen production based on magnesium-based solid hydrogen storage alloy and use thereof1 Jan 2026US 2026/0001759 A1Shanghai Jiao Tong University
- Gas compression system and method for recovering hydrogen2 Oct 2025US 2025/0305493 A1Burckhardt Compression AG
- Hydrogen storage material, hydrogen storage container, and hydrogen supply apparatus24 Apr 2025US 2025/0128938 A1Santoku Corporation
- Ab5 type-based hydrogen storage alloys, methods of preparation and uses thereof22 Aug 2024US 2024/0279052 A1Grz Technologies SA
- Ab2 type-based hydrogen storage alloys, methods of preparation and uses thereof8 Aug 2024US 2024/0263284 A1Grz Technologies SA
Most cited
By later US patents
- Amorphous metal alloy compositions for reversible hydrogen storage and electrodes made therefrom131US 4,923,770 AThe Standard Oil Company · 1990
- Compositionally graded amorphous metal alloys and process for the synthesis of same120US 4,859,413 AThe Standard Oil Company · 1989
- LaNi.sub.5 is-based metal hydride electrode in Ni-MH rechargeable cells90US 5,888,665 ACalifornia Institute of Technology · 1999
- Hydrogen-absorbing alloy for battery, method of manufacturing the same, and secondary nickel-metal hydride battery61US 5,654,115 AKabushiki Kaisha Toshiba · 1997
- Energy conversion system59US 5,512,145 AThe Cooper Union for the Advancement of Science and Art · 1996