C02F 2103/06
Contaminated groundwater or leachate
C02F2103/06 (Contaminated groundwater or leachate) appears on 1,154 US grants and 1,516 published applications in this corpus.
Search patents in C02F- Granted patents
- 1,154
- Published applications
- 1,516
- Assignees
- 902
- Inventors
- 3,083
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 2 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 2 | 0 |
| 1989 | 2 | 0 |
| 1990 | 2 | 0 |
| 1991 | 9 | 0 |
| 1992 | 23 | 0 |
| 1993 | 15 | 0 |
| 1994 | 21 | 0 |
| 1995 | 9 | 0 |
| 1996 | 9 | 0 |
| 1997 | 14 | 0 |
| 1998 | 7 | 0 |
| 1999 | 11 | 0 |
| 2000 | 13 | 0 |
| 2001 | 18 | 4 |
| 2002 | 25 | 26 |
| 2003 | 27 | 57 |
| 2004 | 26 | 32 |
| 2005 | 23 | 43 |
| 2006 | 23 | 41 |
| 2007 | 32 | 41 |
| 2008 | 25 | 47 |
| 2009 | 22 | 31 |
| 2010 | 34 | 43 |
| 2011 | 22 | 33 |
| 2012 | 21 | 42 |
| 2013 | 28 | 47 |
| 2014 | 34 | 70 |
| 2015 | 31 | 79 |
| 2016 | 36 | 82 |
| 2017 | 51 | 82 |
| 2018 | 54 | 73 |
| 2019 | 66 | 70 |
| 2020 | 64 | 88 |
| 2021 | 65 | 86 |
| 2022 | 64 | 82 |
| 2023 | 53 | 88 |
| 2024 | 57 | 83 |
| 2025 | 69 | 90 |
| 2026 | 41 | 56 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Apparatus and methods for methyl mercury detection and capture22 Sep 2026US 12,741,891 B2The Regents of the University of California
- Method and kit for remediation of environments contaminated with halogenated organic compounds15 Sep 2026US 12,734,568 B2Photon Remediation Technology N.V.
- Formulations and processes for treating water from impacted sources25 Aug 2026US 12,714,991 B2Brown University
- System for in situ filtration of water supply25 Aug 2026US 12,715,786 B1Loureiro Engineering Associates, Inc.
- Methods and systems for electrochemical oxidation of polyfluoroalkyl and perfluoroalkyl contaminants25 Aug 2026US 12,715,794 B2University of Georgia Research Foundation, Inc.
- 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.
- Complexated biomolecules for use in contaminated soil or groundwater cleanup8 Oct 2026US 2026/0308334 A1BlueHalo, LLC
- Systems for catalytically removing per- and polyfluoroalkyl substances from a fluid and related methods1 Oct 2026US 2026/0296939 A1Arizona Board of Regents on behalf of Arizona State University
- Method and system for treatment of pfas contaminated wastewater and water utilizing gas nanobubbles24 Sep 2026US 2026/0285708 A1Streamgo Water Solutions Inc.
- Compounds and processes for remediation of perfluoroalkyl24 Sep 2026US 2026/0285709 A1Weaver Labs, LLC
Most cited
By later US patents
- Removal of volatile compounds and surfactants from liquid112US 5,122,165 AInternational Environmental Systems, Inc. · 1992
- Apparatus for oxygenating wastewater108US 7,008,535 B1DynamOx, Inc. · 2006
- Method and apparatus for in situ groundwater remediation82US 5,302,286 AThe Board of Trustees of the Leland Stanford Junior University · 1994
- Method and system to remotely monitor groundwater treatment79US 6,491,828 B1General Electric Company · 2002
- Cleaning halogenated contaminants from groundwater78US 5,266,213 A1993