B01J 31/0249
Ureas
Official title: {Ureas (R2N-C(=O)-NR2)}
B01J31/0249 (Ureas) appears on 39 US grants and 41 published applications in this corpus.
Search patents in B01J- Granted patents
- 39
- Published applications
- 41
- Assignees
- 48
- Inventors
- 144
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 2 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 3 | 0 |
| 2002 | 1 | 1 |
| 2003 | 1 | 1 |
| 2004 | 1 | 3 |
| 2005 | 0 | 1 |
| 2006 | 2 | 1 |
| 2007 | 3 | 1 |
| 2008 | 1 | 0 |
| 2009 | 1 | 2 |
| 2010 | 1 | 0 |
| 2011 | 1 | 3 |
| 2012 | 0 | 1 |
| 2013 | 1 | 1 |
| 2014 | 1 | 0 |
| 2015 | 1 | 2 |
| 2016 | 0 | 6 |
| 2017 | 4 | 1 |
| 2018 | 2 | 1 |
| 2019 | 1 | 0 |
| 2020 | 2 | 2 |
| 2021 | 0 | 2 |
| 2022 | 0 | 0 |
| 2023 | 2 | 4 |
| 2024 | 1 | 6 |
| 2025 | 1 | 1 |
| 2026 | 3 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Organic-inorganic composite catalyst, air purification device including the organic-inorganic composite catalyst, and method of regenerating the organic-inorganic composite catalyst1 Sep 2026US 12,722,149 B2Jk Global Co., Ltd.
- Supported transition metal nanoparticle catalyst and use thereof as a hydrogenation catalyst14 Jul 2026US 12,678,773 B2BASF SE
- Access to chiral bisphenol (BPOL) ligands through desymmetrizing asymmetric ortho-selective mono-halogenation26 May 2026US 12,637,403 B2The Chinese University of Hong Kong
- High ductility, high modulus and phthalate free impact resistant propylene copolymer7 Oct 2025US 12,435,168 B2Formosa Plastics Corporation, U. S. A
- Access to chiral bisphenol (BPOL) ligands through desymmetrizing asymmetric ortho-selective mono-halogenation20 Feb 2024US 11,905,237 B2The Chinese University of Hong Kong
- Supported transition metal nanoparticle catalyst and use thereof as a hydrogenation catalyst1 Oct 2026US 2026/0295565 A1BASF SE
- Catalytic stereoselective glycosylation6 Mar 2025US 2025/0074932 A1
- Polyester Depolymerisation29 Aug 2024US 2024/0287276 A1
- Access to chiral bisphenol (bpol) ligands through desymmetrizing asymmetric ortho-selective mono-halogenation23 May 2024US 2024/0166586 A1The Chinese University of Hong Kong
- High Ductility, High Modulus and Phthalate Free Impact Resistant Propylene Copolymer4 Apr 2024US 2024/0109988 A1Formosa Plastics Corporation, U. S. A
Most cited
By later US patents
- Processes for the deposition or removal of metals48US 4,755,265 AUnion Oil Company of California · 1988
- Preparation of carbamates44US 4,474,978 AShell Oil Company · 1984
- Composition for accelerating the decomposition of hydrocarbons31US 5,849,566 ANeozyme International, Inc. · 1998
- Ionic liquids and their use as solvents25US 7,183,433 B2Scionix Limited · 2007
- N,N,N'-trimethylbis (Aminoethyl) ether substituted urea compostions for the production of polyurethanes24US 5,824,711 AAir Products and Chemicals, Inc. · 1998