C02F 1/40
Devices for separating or removing fatty or oily substances or similar floating
Official title: Devices for separating or removing fatty or oily substances or similar floating material (cleaning or keeping clear the surface of open water from oil or like materials E02B15/04; devices in sewers for separating liquid or solid substances from sewage E03F5/14, e.g. for use in drains leading to the sewer E03F5/16)
C02F1/40 (Devices for separating or removing fatty or oily substances or similar floating) appears on 1,072 US grants and 1,401 published applications in this corpus.
Search patents in C02F- Granted patents
- 1,072
- Published applications
- 1,401
- Assignees
- 774
- Inventors
- 2,617
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 3 | 0 |
| 1978 | 0 | 0 |
| 1979 | 2 | 0 |
| 1980 | 3 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 2 | 0 |
| 1987 | 1 | 0 |
| 1988 | 2 | 0 |
| 1989 | 6 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 5 | 0 |
| 1996 | 1 | 0 |
| 1997 | 3 | 0 |
| 1998 | 0 | 0 |
| 1999 | 10 | 0 |
| 2000 | 6 | 0 |
| 2001 | 6 | 0 |
| 2002 | 15 | 9 |
| 2003 | 10 | 22 |
| 2004 | 16 | 24 |
| 2005 | 18 | 33 |
| 2006 | 25 | 31 |
| 2007 | 21 | 37 |
| 2008 | 18 | 28 |
| 2009 | 26 | 43 |
| 2010 | 26 | 42 |
| 2011 | 25 | 50 |
| 2012 | 39 | 51 |
| 2013 | 21 | 64 |
| 2014 | 44 | 55 |
| 2015 | 31 | 71 |
| 2016 | 45 | 93 |
| 2017 | 62 | 81 |
| 2018 | 61 | 79 |
| 2019 | 86 | 85 |
| 2020 | 83 | 80 |
| 2021 | 76 | 82 |
| 2022 | 67 | 91 |
| 2023 | 63 | 80 |
| 2024 | 46 | 56 |
| 2025 | 57 | 62 |
| 2026 | 34 | 52 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Waste water treatment process6 Oct 2026US 12,753,095 B2U.S. Clean Water Technology, Inc.
- Oil-water mixture treatment device and method15 Sep 2026US 12,735,334 B2China Petroleum & Chemical Corporation
- Water oil separator vessel with hydrophobic mesh tubes8 Sep 2026US 12,728,369 B2Saudi Arabian Oil Company
- Oil and fuel collector25 Aug 2026US 12,714,951 B2Manvers Engineering Limited
- Autonomous water vehicle for collecting waste and algae from water bodies and method of operation25 Aug 2026US 12,715,789 B2
- Equipment and method for removing a supernatant phase from a body of water in a polluted groundwater8 Oct 2026US 2026/0307123 A1ENI S. p. A.
- Surface functionalized foams and methods of use thereof1 Oct 2026US 2026/0297258 A1
- Debris removal sleeve1 Oct 2026US 2026/0297969 A1
- Device body structure and water surface cleaning device17 Sep 2026US 2026/0274713 A1Shenzhen Maining Innovation Technology Co., Ltd.
- Debris basket and water surface cleaning robot17 Sep 2026US 2026/0275742 A1Shenzhen Maining Innovation Technology Co., Ltd.
Most cited
By later US patents
- Water treatment method for heavy oil production150US 6,733,636 B1Ionics, Incorporated · 2004
- Continuous process for the reclamation of waste drilling fluids141US 4,482,459 ANewpark Waste Treatment Systems Inc. · 1984
- Methods and apparatus for the application of combined fields to disinfect fluids89US 5,997,812 ACoolant Treatment Systems, L.L.C. · 1999
- Storm drain filter system80US 6,270,663 B12001
- Modular ozone water treatment apparatus and associated method78US 5,427,693 AO'Three Limited · 1995