C02F 2101/32
Hydrocarbons
Official title: Hydrocarbons, e.g. oil
C02F2101/32 (Hydrocarbons) appears on 2,133 US grants and 2,896 published applications in this corpus.
Search patents in C02F- Granted patents
- 2,133
- Published applications
- 2,896
- Assignees
- 1,540
- Inventors
- 5,573
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 2 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 3 | 0 |
| 1982 | 0 | 0 |
| 1983 | 3 | 0 |
| 1984 | 1 | 0 |
| 1985 | 3 | 0 |
| 1986 | 4 | 0 |
| 1987 | 4 | 0 |
| 1988 | 3 | 0 |
| 1989 | 7 | 0 |
| 1990 | 2 | 0 |
| 1991 | 8 | 0 |
| 1992 | 2 | 0 |
| 1993 | 4 | 0 |
| 1994 | 6 | 0 |
| 1995 | 7 | 0 |
| 1996 | 9 | 0 |
| 1997 | 8 | 0 |
| 1998 | 5 | 0 |
| 1999 | 15 | 0 |
| 2000 | 37 | 0 |
| 2001 | 33 | 7 |
| 2002 | 40 | 30 |
| 2003 | 27 | 61 |
| 2004 | 28 | 42 |
| 2005 | 31 | 56 |
| 2006 | 30 | 50 |
| 2007 | 31 | 58 |
| 2008 | 33 | 68 |
| 2009 | 48 | 70 |
| 2010 | 52 | 85 |
| 2011 | 47 | 112 |
| 2012 | 56 | 122 |
| 2013 | 59 | 118 |
| 2014 | 88 | 158 |
| 2015 | 75 | 183 |
| 2016 | 97 | 198 |
| 2017 | 109 | 196 |
| 2018 | 153 | 163 |
| 2019 | 163 | 168 |
| 2020 | 147 | 151 |
| 2021 | 150 | 152 |
| 2022 | 123 | 159 |
| 2023 | 97 | 151 |
| 2024 | 100 | 135 |
| 2025 | 112 | 107 |
| 2026 | 67 | 96 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Waste water treatment process6 Oct 2026US 12,753,095 B2U.S. Clean Water Technology, Inc.
- Nanocomposite preparation, method for making the same and use thereof15 Sep 2026US 12,735,338 B2Institute of Soil Science, Chinese Academy of Sciences
- Water oil separator vessel with hydrophobic mesh tubes8 Sep 2026US 12,728,369 B2Saudi Arabian Oil Company
- Wastewater processing system and apparatus8 Sep 2026US 12,729,138 B2Skagen Energy Services Inc.
- Treating produced water for beneficial reuse8 Sep 2026US 12,729,139 B2Renovo Resources LLC
- Method and apparatus for confining the spread of pollutants spilled into a moving fluid8 Oct 2026US 2026/0308859 A1
- Surface functionalized foams and methods of use thereof1 Oct 2026US 2026/0297258 A1
- Debris removal sleeve1 Oct 2026US 2026/0297969 A1
- Desalination and softening of produced water24 Sep 2026US 2026/0285723 A1Chevron U.S.A.Inc.
- Integrated Method and Apparatus for Treatment of Produced Water24 Sep 2026US 2026/0285725 A1Tetra Technologies, Inc.
Most cited
By later US patents
- Photocatalyst-binder compositions125US 5,616,532 AE. Heller & Company · 1997
- Diffuser/emulsifier124US 6,386,751 B1Diffusion Dynamics, Inc. · 2002
- Membrane based fluid treatment systems110US 7,186,344 B2Water Visions International, Inc. · 2007
- Curb-inlet storm drain systems for filtering trash and hydrocarbons91US 6,106,707 AAbTech Industries, Inc. · 2000
- Methods and apparatus for the application of combined fields to disinfect fluids89US 5,997,812 ACoolant Treatment Systems, L.L.C. · 1999