C02F 1/682
By addition of chemical compounds for dispersing an oily layer on water
Official title: {by addition of chemical compounds for dispersing an oily layer on water}
C02F1/682 (By addition of chemical compounds for dispersing an oily layer on water) appears on 155 US grants and 107 published applications in this corpus.
Search patents in C02F- Granted patents
- 155
- Published applications
- 107
- Assignees
- 110
- Inventors
- 352
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 8 | 0 |
| 1977 | 2 | 0 |
| 1978 | 3 | 0 |
| 1979 | 2 | 0 |
| 1980 | 6 | 0 |
| 1981 | 3 | 0 |
| 1982 | 6 | 0 |
| 1983 | 6 | 0 |
| 1984 | 1 | 0 |
| 1985 | 3 | 0 |
| 1986 | 2 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 2 | 0 |
| 1990 | 3 | 0 |
| 1991 | 3 | 0 |
| 1992 | 3 | 0 |
| 1993 | 1 | 0 |
| 1994 | 2 | 0 |
| 1995 | 5 | 0 |
| 1996 | 2 | 0 |
| 1997 | 3 | 0 |
| 1998 | 7 | 0 |
| 1999 | 4 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 1 |
| 2002 | 1 | 3 |
| 2003 | 2 | 2 |
| 2004 | 3 | 5 |
| 2005 | 2 | 2 |
| 2006 | 1 | 1 |
| 2007 | 3 | 0 |
| 2008 | 2 | 2 |
| 2009 | 1 | 4 |
| 2010 | 2 | 2 |
| 2011 | 1 | 5 |
| 2012 | 3 | 9 |
| 2013 | 4 | 10 |
| 2014 | 3 | 10 |
| 2015 | 10 | 5 |
| 2016 | 3 | 5 |
| 2017 | 4 | 3 |
| 2018 | 4 | 2 |
| 2019 | 5 | 3 |
| 2020 | 0 | 6 |
| 2021 | 3 | 2 |
| 2022 | 4 | 13 |
| 2023 | 3 | 2 |
| 2024 | 6 | 2 |
| 2025 | 3 | 7 |
| 2026 | 2 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Enhanced foam fractionation of oil phase from aqueous/oil mixed phase via increased viscoelasticity8 Sep 2026US 12,729,140 B2Ecolab USA Inc.
- Compositions and related kits and methods for water treatment10 Mar 2026US 12,569,782 B2InnoTech Alberta Inc.
- Crude oil demulsifier compositions and uses thereof7 Oct 2025US 12,435,280 B2Ecolab USA Inc.
- Composition for temporarily-hydrophobic and oil-absorbent bioremediation agent1 Jul 2025US 12,344,792 B2
- Polyethylenimine as a new emulsion breaker for quench water systems25 Feb 2025US 12,233,357 B2Ecolab USA Inc.
- Compositions and related kits and methods for water treatment18 Jun 2026US 2026/0166450 A1InnoTech Alberta Inc.
- Methods for mitigating produced water cooler fouling21 Aug 2025US 2025/0262567 A1ChampionX LLC
- Polyethylenimine as a new emulsion breaker for quench water systems22 May 2025US 2025/0161843 A1Ecolab USA Inc.
- Compositions and methods of use for enhanced soil removal and fat, oil, and grease reduction in drain products and discharges into water sources15 May 2025US 2025/0154036 A1Ecolab USA Inc.
- Method for biologically treating persistent organic waste water containing oil component including higher fatty acid and thickening polysaccharide1 May 2025US 2025/0136489 A1Suiwa Co.,Ltd.
Most cited
By later US patents
- Biofilm reduction method72US 5,462,644 AMinnesota Mining and Manufacturing Company · 1995
- Biodegradation of oil on water surfaces38US 3,959,127 AThe United States of America as represented by the Secretary of the Navy · 1976
- Use of microorganisms in combination with surface active agents to synergistically disperse oil slicks34US 4,146,470 AExxon Research & Engineering Co. · 1979
- Stable percarboxylic acid compositions and uses thereof33US 9,321,664 B2Ecolab USA Inc. · 2016
- Coagulant for oil glyceride/isobutyl methacrylate composition and method of use28US 5,437,793 AMansfield & Alper, Inc. · 1995