B01J 2531/58
Tantalum
B01J2531/58 (Tantalum) appears on 32 US grants and 31 published applications in this corpus.
Search patents in B01J- Granted patents
- 32
- Published applications
- 31
- Assignees
- 30
- Inventors
- 136
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 2 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 0 |
| 2003 | 1 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 2 |
| 2007 | 1 | 0 |
| 2008 | 0 | 1 |
| 2009 | 2 | 1 |
| 2010 | 0 | 2 |
| 2011 | 0 | 2 |
| 2012 | 1 | 1 |
| 2013 | 0 | 2 |
| 2014 | 0 | 1 |
| 2015 | 2 | 1 |
| 2016 | 0 | 1 |
| 2017 | 2 | 2 |
| 2018 | 0 | 0 |
| 2019 | 0 | 2 |
| 2020 | 0 | 4 |
| 2021 | 3 | 3 |
| 2022 | 1 | 2 |
| 2023 | 2 | 0 |
| 2024 | 1 | 3 |
| 2025 | 1 | 1 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Catalytic hydrogenolysis of a polymer25 Aug 2026US 12,715,826 B2Northwestern University
- Nanofiber electrocatalyst8 Apr 2025US 12,269,020 B2Uchicago Argonne, LLC
- Nanofiber electrocatalyst30 Jan 2024US 11,883,808 B2Uchicago Argonne, LLC
- Group 5 metal complexes for producing amine-functionalized polyolefins24 Oct 2023US 11,795,315 B2
- Amine functionalized polymers and methods of preparation17 Jan 2023US 11,555,107 B2
- Catalytic hydrogenolysis of a polymer31 Jul 2025US 2025/0243134 A1Northwestern University
- Novel amine functionalized polymers and methods of preparation25 Jul 2024US 2024/0247142 A1The University of British Columbia
- Nanofiber electrocatalyst25 Apr 2024US 2024/0131501 A1Uchicago Argonne, LLC
- Highly dispersed metal supported oxide as nh3-scr catalyst and synthesis processes11 Apr 2024US 2024/0116043 A1Centre National De La Recherche Scientifique
- Group 5 metal complexes for producing amine-funtionalized polyolefins17 Nov 2022US 2022/0363786 A1The University of British Columbia
Most cited
By later US patents
- Transition metal olefin polymerization catalysts97US 5,504,049 AExxon Chemical Patents Inc. · 1996
- Transition metal olefin polymerization processes46US 5,502,124 AExxon Chemical Patents Inc. · 1996
- Engineered catalyst systems and methods for their production and use35US 5,786,291 AExxon Chemical Patents Inc. · 1998
- Amorphous silica having discrete voids and spatially organized functionalities formed therein35US 6,380,266 B1California Institute of Technology · 2002
- Tetramerization of olefins33US 7,297,832 B2Sasol Technology (Pty) Ltd · 2007