B01J 2531/0247
Tripodal ligands
Official title: Tripodal ligands, e.g. comprising the tris(pyrazolyl)borate skeleton, "tpz", neutral analogues thereof by CH/BH exchange or anionic analogues of the latter by exchange of one of the pyrazolyl groups for an anionic complexing group such as carboxylate or -R-Cp
B01J2531/0247 (Tripodal ligands) appears on 20 US grants and 19 published applications in this corpus.
Search patents in B01J- Granted patents
- 20
- Published applications
- 19
- Assignees
- 24
- Inventors
- 69
- Latest grant
- 21 Oct 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1996 | 2 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 2 | 1 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 1 | 2 |
| 2006 | 0 | 0 |
| 2007 | 0 | 2 |
| 2008 | 1 | 0 |
| 2009 | 1 | 1 |
| 2010 | 0 | 0 |
| 2011 | 1 | 0 |
| 2012 | 1 | 0 |
| 2013 | 0 | 1 |
| 2014 | 1 | 1 |
| 2015 | 1 | 6 |
| 2016 | 1 | 1 |
| 2017 | 2 | 0 |
| 2018 | 1 | 0 |
| 2019 | 0 | 2 |
| 2020 | 0 | 0 |
| 2021 | 1 | 0 |
| 2022 | 1 | 1 |
| 2023 | 0 | 1 |
| 2024 | 0 | 0 |
| 2025 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Borylimide catalysts21 Oct 2025US 12,447,467 B2SCG Chemicals Public Company Limited
- Boron-based electron donors for Ziegler-Natta catalyst systems5 Apr 2022US 11,291,981 B2Braskem America, Inc.
- Multidentate ligands and use thereof20 Jul 2021US 11,065,608 B2The Trustees of Columbia University in the City of New York
- Method for preparing a catalyst mediating H2 evolution, said catalyst and uses thereof27 Nov 2018US 10,137,435 B2Commissariat A L' Energie Atomique Et Aux Energies Alternatives
- Catalytic ammonia synthesis by transition metal molecular complexes14 Nov 2017US 9,815,694 B2California Institute of Technology
- Chemical analogs of carbonic anhydrase for concrete repair6 Apr 2023US 2023/0105378 A1Worcester Polytechnic Institute
- Borylimide catalysts10 Mar 2022US 2022/0072522 A1SCG Chemicals Co., Ltd.
- Multidentate ligands and use thereof26 Sep 2019US 2019/0291088 A1The Trustees of Columbia University in the City of New York
- Boron-based electron donors for ziegler-natta catalyst systems14 Feb 2019US 2019/0046965 A1Braskem America, Inc.
- Novel ruthenium complex and method for preparing methanol and diol3 Mar 2016US 2016/0060195 A1Shanghai Institute od Organic Chemistry, Chinese Academy of Sciences
Most cited
By later US patents
- Titanate catalysts35US 5,710,086 AGeneral Electric Company · 1998
- Catalyst for trimerization of ethylene and process for trimerizing ethylene using the catalyst27US 6,337,297 B12002
- Catalyst for trimerization of ethylene and process for trimerizing ethylene using the catalyst17US 6,900,152 B2Tosoh Corporation · 2005
- Bis- and tris(pyrazolyl)borate metal complex catalysts11US 6,069,110 ABASF SE · 2000
- Catalyst for the preparation of linear carbon monoxide/alpha-olefin copolymers6US 5,565,547 AThe Dow Chemical Company · 1996