Y02A 20/204
Keeping clear the surface of open water from oil spills
Y02A20/204 (Keeping clear the surface of open water from oil spills) appears on 869 US grants and 398 published applications in this corpus.
Search patents in Y02A- Granted patents
- 869
- Published applications
- 398
- Assignees
- 384
- Inventors
- 1,331
- Latest grant
- 19 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 24 | 0 |
| 1977 | 40 | 0 |
| 1978 | 29 | 0 |
| 1979 | 20 | 0 |
| 1980 | 19 | 0 |
| 1981 | 20 | 0 |
| 1982 | 26 | 0 |
| 1983 | 22 | 0 |
| 1984 | 13 | 0 |
| 1985 | 17 | 0 |
| 1986 | 13 | 0 |
| 1987 | 12 | 0 |
| 1988 | 9 | 0 |
| 1989 | 12 | 0 |
| 1990 | 11 | 0 |
| 1991 | 42 | 0 |
| 1992 | 47 | 0 |
| 1993 | 44 | 0 |
| 1994 | 29 | 0 |
| 1995 | 27 | 0 |
| 1996 | 20 | 0 |
| 1997 | 15 | 0 |
| 1998 | 14 | 0 |
| 1999 | 13 | 0 |
| 2000 | 8 | 0 |
| 2001 | 7 | 2 |
| 2002 | 9 | 6 |
| 2003 | 5 | 8 |
| 2004 | 5 | 9 |
| 2005 | 5 | 9 |
| 2006 | 6 | 8 |
| 2007 | 4 | 6 |
| 2008 | 4 | 6 |
| 2009 | 9 | 15 |
| 2010 | 8 | 11 |
| 2011 | 7 | 31 |
| 2012 | 6 | 40 |
| 2013 | 17 | 33 |
| 2014 | 36 | 31 |
| 2015 | 23 | 25 |
| 2016 | 20 | 26 |
| 2017 | 27 | 15 |
| 2018 | 19 | 10 |
| 2019 | 17 | 15 |
| 2020 | 15 | 16 |
| 2021 | 9 | 13 |
| 2022 | 18 | 17 |
| 2023 | 13 | 19 |
| 2024 | 15 | 13 |
| 2025 | 16 | 6 |
| 2026 | 3 | 8 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Buoyant water purification pad19 May 2026US 12,630,447 B2Maximideas Inc.
- Environmental barge for filtering oil from water in the spill response to oil pollution at sea5 May 2026US 12,617,498 B2FLEX-FEB ApS
- Portable oil skimmer31 Mar 2026US 12,590,431 B2Koai Co., Ltd.
- Garbage collection watercraft4 Nov 2025US 12,459,611 B2Yamaha Hatsudoki Kabushiki Kaisha
- Method for separating nonpolar hydrocarbon from water14 Oct 2025US 12,441,634 B1King Fahd University of Petroleum and Minerals
- Absorption devices, materials, and methods18 Jun 2026US 2026/0166518 A1Celgard, LLC
- Boom and jib crane provided with boom18 Jun 2026US 2026/0167464 A1Xuzhou Heavy Machinery Co., Ltd.
- Device for collecting oil-rich liquids28 May 2026US 2026/0146511 A1
- Floating oil collecting device7 May 2026US 2026/0125291 A1Tbm Co., Ltd.
- Device for removing oil-rich liquids from a water surface26 Mar 2026US 2026/0085481 A1
Most cited
By later US patents
- Hydrocarbon containment and control systems76US 4,111,813 A1978
- Article for absorbing oils74US 4,737,394 AE. I. Du Pont de Nemours and Company · 1988
- Methods for ameliorating oil spills in marine and inland waters62US 5,863,440 AAbTech Industries, Inc. · 1999
- Oil-sorbing boom59US 5,165,821 AMinnesota Mining and Manufacturing Company · 1992
- Method and apparatus employing oleophilic brushes for oil spill clean-up57US 4,575,426 AExxon Production Research Company · 1986