B01J 2531/20
Complexes comprising metals of group ii as the central metal
Official title: Complexes comprising metals of Group II (IIA or IIB) as the central metal
B01J2531/20 (Complexes comprising metals of group ii as the central metal) appears on 392 US grants and 378 published applications in this corpus.
Search patents in B01J- Granted patents
- 392
- Published applications
- 378
- Assignees
- 294
- Inventors
- 1,177
- Latest grant
- 28 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 1 | 0 |
| 1978 | 5 | 0 |
| 1979 | 2 | 0 |
| 1980 | 2 | 0 |
| 1981 | 4 | 0 |
| 1982 | 3 | 0 |
| 1983 | 3 | 0 |
| 1984 | 2 | 0 |
| 1985 | 3 | 0 |
| 1986 | 1 | 0 |
| 1987 | 2 | 0 |
| 1988 | 1 | 0 |
| 1989 | 3 | 0 |
| 1990 | 4 | 0 |
| 1991 | 6 | 0 |
| 1992 | 6 | 0 |
| 1993 | 0 | 0 |
| 1994 | 3 | 0 |
| 1995 | 4 | 0 |
| 1996 | 14 | 0 |
| 1997 | 10 | 0 |
| 1998 | 7 | 0 |
| 1999 | 6 | 0 |
| 2000 | 4 | 0 |
| 2001 | 9 | 3 |
| 2002 | 8 | 4 |
| 2003 | 15 | 16 |
| 2004 | 9 | 13 |
| 2005 | 7 | 9 |
| 2006 | 9 | 15 |
| 2007 | 5 | 11 |
| 2008 | 5 | 10 |
| 2009 | 8 | 15 |
| 2010 | 11 | 12 |
| 2011 | 7 | 15 |
| 2012 | 14 | 15 |
| 2013 | 10 | 12 |
| 2014 | 12 | 20 |
| 2015 | 11 | 18 |
| 2016 | 14 | 18 |
| 2017 | 14 | 19 |
| 2018 | 23 | 12 |
| 2019 | 15 | 23 |
| 2020 | 13 | 20 |
| 2021 | 10 | 23 |
| 2022 | 16 | 18 |
| 2023 | 11 | 16 |
| 2024 | 20 | 15 |
| 2025 | 9 | 13 |
| 2026 | 7 | 13 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Method of activating metal-organic framework with dimethyl ether28 Jul 2026US 12,691,441 B2The Regents of the University of Michigan
- Reduction by a silane in the presence of Zinc catalyst28 Jul 2026US 12,692,213 B2Firmenich SA
- Processes for preparing C-4 sugars and ketose sugars2 Jun 2026US 12,643,921 B2Archer Daniels Midland Company
- Carbamate production method, carbamate ester production method, and urea derivative production method12 May 2026US 12,623,999 B2National Institute of Advanced Industrial Science and Technology
- Catalysts and methods for natural gas processes28 Apr 2026US 12,612,344 B2Lummus Technology Inc.
- Processes for preparing c-4 sugars and ketose sugars24 Sep 2026US 2026/0285894 A1
- Ziegler-natta catalyst for ethylene polymerization and method for preparing same24 Sep 2026US 2026/0286017 A1Hanwha Solutions Corporation
- Solid titanium catalyst component, catalyst for polymerizing olefin, and method for polymerizing olefin24 Sep 2026US 2026/0286018 A1Mitsui Chemicals, Inc.
- Improved method for dehydrogenating hydrocarbons20 Aug 2026US 2026/0242310 A1Arkema France
- Process for preparing allylic alcohol6 Aug 2026US 2026/0225981 A1
Most cited
By later US patents
- Method of expanded porphyrin-oligonucleotide conjugate synthesis325US 5,565,552 ABoard of Regents, Univ. of Texas Sys. · 1996
- Texaphyrin-oligonucleotide conjugates308US 5,587,371 ABoard of Trustees, Univ. of TX Sys. · 1996
- Crystalline metal-organic microporous materials153US 5,648,508 ANalco Chemical Company · 1997
- Metal nanocrystals and synthesis thereof117US 6,645,444 B2Nanospin Solutions · 2003
- Isoreticular metal-organic frameworks, process for forming the same, and systematic design of pore size and functionality therein, with application for gas storage106US 6,930,193 B2The Regents of the University of Michigan · 2005