C02F 2101/301
Detergents, surfactants
Official title: {Detergents, surfactants}
C02F2101/301 (Detergents, surfactants) appears on 132 US grants and 215 published applications in this corpus.
Search patents in C02F- Granted patents
- 132
- Published applications
- 215
- Assignees
- 172
- Inventors
- 546
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 3 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 1 | 0 |
| 1998 | 2 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 4 | 1 |
| 2002 | 2 | 3 |
| 2003 | 1 | 1 |
| 2004 | 2 | 2 |
| 2005 | 3 | 4 |
| 2006 | 1 | 7 |
| 2007 | 1 | 1 |
| 2008 | 3 | 7 |
| 2009 | 2 | 2 |
| 2010 | 4 | 2 |
| 2011 | 0 | 4 |
| 2012 | 1 | 3 |
| 2013 | 2 | 7 |
| 2014 | 2 | 4 |
| 2015 | 2 | 5 |
| 2016 | 2 | 10 |
| 2017 | 1 | 8 |
| 2018 | 6 | 12 |
| 2019 | 5 | 9 |
| 2020 | 12 | 19 |
| 2021 | 10 | 15 |
| 2022 | 11 | 21 |
| 2023 | 7 | 19 |
| 2024 | 15 | 22 |
| 2025 | 11 | 13 |
| 2026 | 6 | 14 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Formulations and processes for treating water from impacted sources25 Aug 2026US 12,714,991 B2Brown University
- Synthesis of composite beads coated with layered manganese oxide and use of such beads to remove toxic elements contained in fluids9 Jun 2026US 12,649,673 B2Centre National de la Recherche Scientique
- Complexated biomolecules for use in contaminated soil or groundwater cleanup21 Apr 2026US 12,606,678 B2BlueHalo, LLC
- Straight-line sewage treatment system for enhanced treatment of low C/N domestic sewage31 Mar 2026US 12,590,019 B2Tongji University
- Method and apparatus for removal of per- and polyfluoroalkyl substances (PFAS) from groundwater24 Mar 2026US 12,583,767 B2GSI Environmental, Inc.
- Method and system for treatment of pfas contaminated wastewater and water utilizing gas nanobubbles24 Sep 2026US 2026/0285708 A1Streamgo Water Solutions Inc.
- Removal and destruction of perfluoroalkyl and polyfluoroalkyl substances from contaminated water20 Aug 2026US 2026/0242247 A1Evoqua Water Technologies LLC
- Improved method and system for treatment of pfas contaminated wastewater and water utilizing gas nanobubbles30 Jul 2026US 2026/0217568 A1StreanGo Water Solutions, Inc.
- Extraction module and methods for extraction of a target species18 Jun 2026US 2026/0166493 A1Kunin Technologies, Inc.
- Polymers, fluorinated ionic polymer networks, and methods related thereto21 May 2026US 2026/0138119 A1The University of North Carolina at Chapel Hill
Most cited
By later US patents
- Device for treating waste water47US 4,104,164 A1978
- Electrochemical device for generating hydroxyl free radicals and oxidizing chemical substances dissolved in water42US 5,439,577 A1995
- Bilge water reclamation system and process40US 6,902,678 B22005
- Removal of fluorinated surfactants from waste water40US 7,018,541 B23M Innovative Properties Company · 2006
- Apparatus for microwave separation of emulsions32US 4,853,507 AE. I. DuPont de Nemours and Company · 1989