C11D 3/323
Urea or derivatives thereof
Official title: {urea or derivatives thereof}
C11D3/323 (Urea or derivatives thereof) appears on 238 US grants and 227 published applications in this corpus.
Search patents in C11D- Granted patents
- 238
- Published applications
- 227
- Assignees
- 102
- Inventors
- 503
- Latest grant
- 28 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 4 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 3 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 2 | 0 |
| 1994 | 2 | 0 |
| 1995 | 3 | 0 |
| 1996 | 5 | 0 |
| 1997 | 2 | 0 |
| 1998 | 4 | 0 |
| 1999 | 11 | 0 |
| 2000 | 11 | 0 |
| 2001 | 2 | 1 |
| 2002 | 12 | 5 |
| 2003 | 6 | 14 |
| 2004 | 8 | 9 |
| 2005 | 6 | 14 |
| 2006 | 5 | 11 |
| 2007 | 2 | 8 |
| 2008 | 3 | 7 |
| 2009 | 7 | 5 |
| 2010 | 5 | 11 |
| 2011 | 7 | 8 |
| 2012 | 7 | 11 |
| 2013 | 14 | 10 |
| 2014 | 10 | 8 |
| 2015 | 9 | 5 |
| 2016 | 7 | 10 |
| 2017 | 2 | 13 |
| 2018 | 5 | 11 |
| 2019 | 10 | 10 |
| 2020 | 10 | 9 |
| 2021 | 5 | 7 |
| 2022 | 8 | 8 |
| 2023 | 8 | 7 |
| 2024 | 11 | 12 |
| 2025 | 2 | 8 |
| 2026 | 5 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Solar panel cleaning formulation28 Jul 2026US 12,692,457 B2Hindustan Petroleum Corporation Limited
- Degreasing composition comprising an anionic surfactant mixture5 May 2026US 12,618,021 B2
- Turbine deposit cleaner10 Mar 2026US 12,571,328 B2Ecolab USA Inc.
- Microelectronic device cleaning composition24 Feb 2026US 12,559,704 B2Entegris, Inc.
- Cleaning agent comprising protease for automatic dosing6 Jan 2026US 12,516,272 B2Henkel AG & Co. KGaA
- Granules comprising bleaching catalyst or precursor thereof, bleaching agent and cleaning agent comprising same and use thereof3 Sep 2026US 2026/0258324 A1Catexel Limited
- Degreasing composition comprising an anionic surfactant mixture23 Jul 2026US 2026/0209632 A1
- Liquid detergent, method for cleaning substrate, and method for producing semiconductor element23 Jul 2026US 2026/0209641 A1Tokyo Ohka Kogyo.Co., Ltd.
- Dishwashing detergent formulation9 Jul 2026US 2026/0193570 A1
- Detergent and uses thereof29 Jan 2026US 2026/0028555 A1Medivators Inc.
Most cited
By later US patents
- Hard surface cleaning compositions, premoistened wipes, methods of use, and articles comprising said compositions or wipes and instructions for use resulting in easier cleaning and maintenance, improved surface appearance and/or hygiene under stress conditions such as no-rinse108US 6,716,805 B1The Procter & Gamble Company · 2004
- Urea-based solid alkaline cleaning composition107US 5,474,698 AEcolab Inc. · 1995
- Reduced residue hard surface cleaner82US 5,252,245 AThe Clorox Company · 1993
- Ultramild antibacterial cleaning composition for frequent use75US 6,045,817 ADiversey Lever, Inc. · 2000
- Compositions comprising glycacarbamate and glycaurea compounds74US 5,880,076 ALever Brothers Company, Division of Conopco, Inc. · 1999