B01J 2540/44
Being derivatives of carboxylic or carbonic acids
Official title: being derivatives of carboxylic or carbonic acids, e.g. amide (RC(=O)-NR2, RC(=O)-NR-C(=O)R) , nitrile, urea (R2N-C(=O)-NR2) , guanidino (R2N-C(=NR)-NR2) groups
B01J2540/44 (Being derivatives of carboxylic or carbonic acids) appears on 36 US grants and 44 published applications in this corpus.
Search patents in B01J- Granted patents
- 36
- Published applications
- 44
- Assignees
- 32
- Inventors
- 108
- Latest grant
- 3 Feb 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2001 | 1 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 1 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 1 |
| 2009 | 1 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 2 |
| 2014 | 1 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 1 |
| 2017 | 1 | 2 |
| 2018 | 0 | 5 |
| 2019 | 5 | 4 |
| 2020 | 4 | 6 |
| 2021 | 7 | 6 |
| 2022 | 6 | 3 |
| 2023 | 4 | 4 |
| 2024 | 4 | 5 |
| 2025 | 1 | 3 |
| 2026 | 1 | 1 |
By publication year. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Tri-(adamantyl) phosphines and applications thereof3 Feb 2026US 12,539,508 B2The Trustees of Princeton University
- Process for producing ruthenium complexes and intermediates thereof and their use in olefin metathesis21 Oct 2025US 12,448,404 B2Apeiron Synthesis S. A.
- Process for producing ruthenium complexes and intermediates thereof and their use in olefin metathesis24 Dec 2024US 12,173,015 B2Apeiron Synthesis S. A.
- Process for producing ruthenium complexes and intermediates thereof and their use in olefin metathesis7 May 2024US 11,976,085 B2Aperion Synthesis S.A.
- Chromium complex and catalyst therefrom13 Feb 2024US 11,896,965 B2Dow Global Technologies LLC
- Tri-(adamantyl)phosphines and applications thereof16 Apr 2026US 2026/0102762 A1The Trustees of Princeton University
- Catalyst coal-oil slurry and preparation method therefor, direct coal liquefaction method, and use19 Jun 2025US 2025/0197730 A1China Shenhua Coal To Liquid and Chemical Co., Ltd.
- Palladium precatalyst embodiments for enantioselective chemical reactions and methods of making and using the same15 May 2025US 2025/0153157 A1
- Process for producing ruthenium complexes and intermediates thereof and their use in olefin metathesis27 Feb 2025US 2025/0066402 A1Apeiron Synthesis S. A.
- Ligand-controlled divergent dehydrogenative reactions of aliphatic acids19 Sep 2024US 2024/0308931 A1The Scripps Research Institute
Most cited
By later US patents
- Use of Lewis acids for the breakdown of gelatinous rare earth compounds in hydrocarbon solutions24US 6,197,713 B1Bridgestone Corporation · 2001
- Ruthenium complexes useful for catalyzing metathesis reactions1US 10,688,481 B2XiMo AG · 2020
- Tri-(adamantyl)phosphines and applications thereof1US 10,981,157 B2The Trustees of Princeton University · 2021
- Process for producing ruthenium complexes and intermediates thereof and their use in olefin metathesis1US 11,192,911 B2Apeiron Synthesis S. A. · 2021
- Process for oligomerization1US 11,260,381 B2Dow Global Technologies LLC · 2022