E02B 15/041
Devices for distributing materials
Official title: {Devices for distributing materials, e.g. absorbed or magnetic particles over a surface of open water to remove the oil, with or without means for picking up the treated oil (E02B15/042 takes precedence)}
E02B15/041 (Devices for distributing materials) appears on 88 US grants and 75 published applications in this corpus.
Search patents in E02B- Granted patents
- 88
- Published applications
- 75
- Assignees
- 55
- Inventors
- 203
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 2 | 0 |
| 1978 | 2 | 0 |
| 1979 | 1 | 0 |
| 1980 | 2 | 0 |
| 1981 | 2 | 0 |
| 1982 | 3 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 2 | 0 |
| 1991 | 1 | 0 |
| 1992 | 2 | 0 |
| 1993 | 6 | 0 |
| 1994 | 2 | 0 |
| 1995 | 2 | 0 |
| 1996 | 2 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 3 | 2 |
| 2003 | 1 | 1 |
| 2004 | 1 | 2 |
| 2005 | 0 | 3 |
| 2006 | 1 | 1 |
| 2007 | 1 | 2 |
| 2008 | 0 | 0 |
| 2009 | 0 | 2 |
| 2010 | 1 | 3 |
| 2011 | 1 | 5 |
| 2012 | 1 | 6 |
| 2013 | 3 | 4 |
| 2014 | 2 | 3 |
| 2015 | 5 | 7 |
| 2016 | 1 | 3 |
| 2017 | 5 | 3 |
| 2018 | 4 | 4 |
| 2019 | 3 | 7 |
| 2020 | 5 | 5 |
| 2021 | 2 | 1 |
| 2022 | 2 | 1 |
| 2023 | 2 | 4 |
| 2024 | 2 | 3 |
| 2025 | 5 | 3 |
| 2026 | 1 | 0 |
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.
- Imidazolium ionic liquids made using cardanol extracted from cashew nutshell oil to enhance crude oil recovery in oilfields18 Feb 2025US 12,226,751 B2King Saud University
- Method for cleaning up oil spills using multi-layered carbon fiber-based absorbents18 Feb 2025US 12,227,436 B2
- Imidazolium ionic liquids made using cardanol extracted from cashew nutshell oil to enhance crude oil recovery in oilfields28 Jan 2025US 12,208,370 B2King Saud University
- Imidazolium ionic liquids made using cardanol extracted from cashew nutshell oil to enhance crude oil recovery in oilfields28 Jan 2025US 12,208,371 B2King Saud University
- Herbal absorbent material for combating oil and oil spills6 Nov 2025US 2025/0339838 A1Istanbul Teknik Universitesi
- Method of treating an oil spill14 Aug 2025US 2025/0256222 A1King Fahd University of Petroleum and Minerals
- Imidazolium ionic liquids made using cardanol extracted from cashew nutshell oil to enhance crude oil recovery in oilfields2 Jan 2025US 2025/0001394 A1King Saud University
- Imidazolium ionic liquids made using cardanol extracted from cashew nutshell oil to enhance crude oil recovery in oilfields26 Dec 2024US 2024/0424478 A1King Saud University
- Imidazolium ionic liquids made using cardanol extracted from cashew nutshell oil to enhance crude oil recovery in oilfields26 Dec 2024US 2024/0424479 A1King Saud University
Most cited
By later US patents
- Oil spill cleanup compositions41US 4,925,343 A1990
- Removal of oil from water31US 4,439,324 A1984
- Method and apparatus for controlling water surface activity26US 4,356,094 A1982
- Process of cleaning oil spills and the like26US 5,215,407 A1993
- Cryothermal manipulation of petroleum24US 4,129,431 ARose Shuffman, executrix u/w Oscar Shuffman, deceased · 1978