B01J 31/04
Containing carboxylic acids or their salts
Official title: containing carboxylic acids or their salts {(B01J31/0277 - B01J31/0298 take precedence; multi-metal carboxylate complexes like Pd (II) acetate, i.e. Pd3 (OAc) 6 or Cr(II)acetate, i.e. Cr2(OAc)4 B01J31/2226)}
B01J31/04 (Containing carboxylic acids or their salts) appears on 734 US grants and 538 published applications in this corpus.
Search patents in B01J- Granted patents
- 734
- Published applications
- 538
- Assignees
- 423
- Inventors
- 1,976
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 20 | 0 |
| 1977 | 13 | 0 |
| 1978 | 8 | 0 |
| 1979 | 16 | 0 |
| 1980 | 18 | 0 |
| 1981 | 13 | 0 |
| 1982 | 14 | 0 |
| 1983 | 16 | 0 |
| 1984 | 13 | 0 |
| 1985 | 7 | 0 |
| 1986 | 11 | 0 |
| 1987 | 8 | 0 |
| 1988 | 7 | 0 |
| 1989 | 17 | 0 |
| 1990 | 9 | 0 |
| 1991 | 18 | 0 |
| 1992 | 13 | 0 |
| 1993 | 13 | 0 |
| 1994 | 4 | 0 |
| 1995 | 8 | 0 |
| 1996 | 10 | 0 |
| 1997 | 16 | 0 |
| 1998 | 14 | 0 |
| 1999 | 12 | 0 |
| 2000 | 12 | 0 |
| 2001 | 17 | 5 |
| 2002 | 14 | 15 |
| 2003 | 14 | 22 |
| 2004 | 10 | 14 |
| 2005 | 7 | 22 |
| 2006 | 13 | 13 |
| 2007 | 13 | 19 |
| 2008 | 5 | 18 |
| 2009 | 11 | 19 |
| 2010 | 14 | 26 |
| 2011 | 14 | 19 |
| 2012 | 18 | 12 |
| 2013 | 15 | 11 |
| 2014 | 9 | 12 |
| 2015 | 15 | 26 |
| 2016 | 18 | 31 |
| 2017 | 18 | 21 |
| 2018 | 32 | 42 |
| 2019 | 21 | 36 |
| 2020 | 45 | 33 |
| 2021 | 30 | 29 |
| 2022 | 24 | 26 |
| 2023 | 16 | 21 |
| 2024 | 13 | 18 |
| 2025 | 12 | 17 |
| 2026 | 6 | 11 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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Most cited
By later US patents
- Method of recovering in active form the catalyst for the terephthalic acid synthesis117US 4,356,319 AMontedison S.p.A. · 1982
- Polymerization of carbon monoxide/olefin with P ligand having polar aryl group101US 4,843,144 AShell Oil Company · 1989
- Catalytic composition and process for oligomerising ethylene in particular to 1-butene and/or 1-hexene77US 6,031,145 AInstitut Francais du Petrole · 2000
- Process for preparing an additive-based mixed metal catalyst, its composition and use74US 6,566,296 B2Akzo Nobel N. V. · 2003
- Olefin production process69US 7,157,612 B2Phillips Petroleum Company · 2007