B01J 31/0258
Phosphoric acid mono-, di- or triesters , i.e. r= c, r'= c
Official title: {Phosphoric acid mono-, di- or triesters ((RO)(R'O)2P=O), i.e. R= C, R'= C, H}
B01J31/0258 (Phosphoric acid mono-, di- or triesters , i.e. r= c, r'= c) appears on 52 US grants and 50 published applications in this corpus.
Search patents in B01J- Granted patents
- 52
- Published applications
- 50
- Assignees
- 52
- Inventors
- 164
- Latest grant
- 4 Nov 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 2 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 2 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 3 | 0 |
| 2001 | 0 | 0 |
| 2002 | 4 | 3 |
| 2003 | 2 | 2 |
| 2004 | 0 | 0 |
| 2005 | 1 | 2 |
| 2006 | 2 | 2 |
| 2007 | 0 | 2 |
| 2008 | 0 | 0 |
| 2009 | 3 | 1 |
| 2010 | 1 | 1 |
| 2011 | 1 | 1 |
| 2012 | 0 | 0 |
| 2013 | 0 | 2 |
| 2014 | 1 | 0 |
| 2015 | 0 | 3 |
| 2016 | 1 | 2 |
| 2017 | 0 | 2 |
| 2018 | 3 | 4 |
| 2019 | 3 | 1 |
| 2020 | 2 | 5 |
| 2021 | 0 | 2 |
| 2022 | 3 | 5 |
| 2023 | 3 | 2 |
| 2024 | 2 | 5 |
| 2025 | 4 | 1 |
| 2026 | 0 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Formation of n-protected 3,6-bis-(4-aminoalkyl)-2,5,diketopiperazine4 Nov 2025US 12,459,903 B2MannKind Corporation
- Methods for enantioselective preparation of chiral tetraarylmethanes24 Jun 2025US 12,338,193 B2The Hong Kong University of Science and Technology
- Process for preparing solid catalyst components for olefin polymerization4 Mar 2025US 12,240,925 B2W. R. Grace & Co.-Conn.
- Spiro-bisphosphorous compound, and preparation and application thereof14 Jan 2025US 12,195,489 B2Guangdong Oxo Chem Ltd.
- Iron salt catalyst regeneration17 Sep 2024US 12,091,376 B2
- Low-odor phosphazene catalyst and use thereof30 Apr 2026US 2026/0115705 A1Changhua Chemical Technology Co., Ltd.
- Formation of N-Protected 3,6-bis-(4-aminoalkyl)-2,5,diketopiperazine12 Feb 2026US 2026/0042739 A1MannKind Corporation
- Formation of N-Protected 3,6-bis-(4-aminoalkyl)-2,5,diketopiperazine22 May 2025US 2025/0163003 A1MannKind Corporation
- Methods of preparing chiral amino acids21 Nov 2024US 2024/0383842 A1Laboratory for Synthetic Chemistry and Chemical Biology Limited
- Iron salt catalyst regeneration11 Jul 2024US 2024/0228410 A9
Most cited
By later US patents
- Titanium-containing catalyst composition and processes therefor and therewith46US 6,066,714 AE. I. Du Pont de Nemours and Company · 2000
- Tin catalysts, a process for their production, their use and cross-linkable mixtures containing them23US 6,162,756 AGE Bayer Silicones GmbH & Co. KG · 2000
- Composition comprising titanium and process therewith20US 6,541,598 B2E. I. Du Pont de Nemours and Company · 2003
- Esterification catalysts15US 6,372,929 B1ACMA Limited · 2002
- Catalyst for the polymerization of propylene and its use15US 6,376,417 B1Beijing Research Institute of Chemical Industry · 2002