B01J 2531/48
Zirconium
B01J2531/48 (Zirconium) appears on 645 US grants and 491 published applications in this corpus.
Search patents in B01J- Granted patents
- 645
- Published applications
- 491
- Assignees
- 237
- Inventors
- 1,362
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 1 | 0 |
| 1978 | 3 | 0 |
| 1979 | 1 | 0 |
| 1980 | 3 | 0 |
| 1981 | 8 | 0 |
| 1982 | 1 | 0 |
| 1983 | 5 | 0 |
| 1984 | 4 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 2 | 0 |
| 1988 | 0 | 0 |
| 1989 | 3 | 0 |
| 1990 | 2 | 0 |
| 1991 | 2 | 0 |
| 1992 | 3 | 0 |
| 1993 | 3 | 0 |
| 1994 | 5 | 0 |
| 1995 | 17 | 0 |
| 1996 | 14 | 0 |
| 1997 | 17 | 0 |
| 1998 | 19 | 0 |
| 1999 | 24 | 0 |
| 2000 | 31 | 0 |
| 2001 | 37 | 8 |
| 2002 | 53 | 24 |
| 2003 | 19 | 19 |
| 2004 | 16 | 26 |
| 2005 | 27 | 33 |
| 2006 | 20 | 19 |
| 2007 | 18 | 16 |
| 2008 | 10 | 16 |
| 2009 | 13 | 16 |
| 2010 | 14 | 21 |
| 2011 | 16 | 18 |
| 2012 | 15 | 22 |
| 2013 | 20 | 19 |
| 2014 | 10 | 17 |
| 2015 | 17 | 21 |
| 2016 | 15 | 19 |
| 2017 | 23 | 19 |
| 2018 | 14 | 20 |
| 2019 | 24 | 31 |
| 2020 | 16 | 13 |
| 2021 | 21 | 18 |
| 2022 | 10 | 19 |
| 2023 | 16 | 11 |
| 2024 | 10 | 19 |
| 2025 | 11 | 16 |
| 2026 | 8 | 11 |
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
- Selective photocatalytic reduction of alkynes to alkenes powered by a cobalt-porphyrin metal-organic frameworks16 Jun 2026US 12,655,078 B2Northwestern University
- Selective terminal CH alumination of saturated hydrocarbons12 May 2026US 12,623,985 B2Cornell University
- Metal organic framework and use thereof for generating H25 May 2026US 12,616,966 B2Centre National De La Recherche Scientifique
- Process for the preparation of a multimodal polyethylene7 Apr 2026US 12,595,325 B2Borealis AG
- Selective olefin oligomerization with transition metal amine bis(phenolate) catalysts8 Oct 2026US 2026/0308083 A1Chevron Phillips Chemical Company LP
- Symmetrical zirconium metallocenes having isobutyl cyclopentadienyl ligands27 Aug 2026US 2026/0250309 A1Dow Global Technologies LLC
- Polyolefin compositions for injection molding27 Aug 2026US 2026/0250438 A1Dow Global Technologies LLC
- A catalyst composition for improving time to reach high esterification conversion of carboxylic acids/anhydrides6 Aug 2026US 2026/0225089 A1Wisconsin Alumni Research Foundation
- Method for producing magnesium compound particle, method for controlling shape of olefin polymer particle, and olefin polymer particle6 Aug 2026US 2026/0226201 A1Mitsui Chemicals, Inc.
Most cited
By later US patents
- Catalyst system of enhanced productivity544US 5,153,157 AExxon Chemical Patents Inc. · 1992
- Compositions that can produce polymers334US 6,300,271 B1Phillips Petroleum Company · 2001
- Organometal catalyst compositions329US 6,355,594 B1Phillips Petroleum Company · 2002
- Organometal catalyst compositions300US 6,376,415 B1Phillips Petroleum Company · 2002
- Organometal compound catalyst286US 6,391,816 B1Phillips Petroleum Company · 2002