B09C 1/02
Extraction using liquids
Official title: Extraction using liquids, e.g. washing, leaching {, flotation}
B09C1/02 (Extraction using liquids) appears on 657 US grants and 356 published applications in this corpus.
Search patents in B09C- Granted patents
- 657
- Published applications
- 356
- Assignees
- 399
- Inventors
- 1,288
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 2 | 0 |
| 1985 | 1 | 0 |
| 1986 | 4 | 0 |
| 1987 | 4 | 0 |
| 1988 | 4 | 0 |
| 1989 | 7 | 0 |
| 1990 | 11 | 0 |
| 1991 | 21 | 0 |
| 1992 | 28 | 0 |
| 1993 | 40 | 0 |
| 1994 | 34 | 0 |
| 1995 | 44 | 0 |
| 1996 | 39 | 0 |
| 1997 | 37 | 0 |
| 1998 | 35 | 0 |
| 1999 | 39 | 0 |
| 2000 | 27 | 0 |
| 2001 | 23 | 1 |
| 2002 | 13 | 10 |
| 2003 | 15 | 24 |
| 2004 | 4 | 26 |
| 2005 | 17 | 16 |
| 2006 | 16 | 12 |
| 2007 | 11 | 14 |
| 2008 | 7 | 14 |
| 2009 | 6 | 13 |
| 2010 | 11 | 20 |
| 2011 | 4 | 11 |
| 2012 | 7 | 14 |
| 2013 | 9 | 14 |
| 2014 | 9 | 12 |
| 2015 | 10 | 18 |
| 2016 | 10 | 14 |
| 2017 | 14 | 26 |
| 2018 | 14 | 12 |
| 2019 | 14 | 17 |
| 2020 | 13 | 13 |
| 2021 | 10 | 5 |
| 2022 | 11 | 13 |
| 2023 | 12 | 12 |
| 2024 | 7 | 7 |
| 2025 | 6 | 10 |
| 2026 | 4 | 8 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Control method and system of front-end conveying device for soil leaching remediation6 Oct 2026US 12,752,322 B2Central South University
- System and method for remediating soil8 Sep 2026US 12,728,452 B2Mad-Era, Inc.
- Device and method for desalination and salt control of lake or reservoir embankment28 Apr 2026US 12,611,703 B2Shanghai Investigation, Design & Research Institute Co., Ltd.
- Detection and extraction of NAPL contaminates14 Apr 2026US 12,601,344 B2NAPL Solutions, LLC
- Washing and desalinating system for sand soil in river mouth blowing-sand reclaimed land before planting greenery9 Dec 2025US 12,492,523 B2China Three Gorges Corporation
- Method for extracting a solid energetic material from contaminated soil1 Oct 2026US 2026/0295646 A1
- Method for stabilizing and immobilizing uranium at source via formation of mineral film mediated by microorganisms13 Aug 2026US 2026/0237533 A1
- Method and Apparatus to Separate Per-and Polyfluoroalkyl Substances (PFAS) from Water Using Colloidal Gas Aphrons (CGAs)9 Jul 2026US 2026/0193114 A1Aphron Technologies, LLC
- Solid waste remediation process4 Jun 2026US 2026/0151807 A1Jgb Innovations Pty Ltd
- Device and method for desalination and salt control of lake or reservoir embankment12 Mar 2026US 2026/0070102 A1Shanghai Investigation, Design & Research Institute Co., Ltd.
Most cited
By later US patents
- In situ thermal processing of a hydrocarbon containing formation via backproducing through a heater well270US 6,932,155 B2Shell Oil Company · 2005
- In situ recovery from a hydrocarbon containing formation using barriers250US 7,077,198 B2Shell Oil Company · 2006
- In situ thermal processing of a hydrocarbon containing formation using a natural distributed combustor233US 7,114,566 B2Shell Oil Company · 2006
- Producing hydrocarbons and non-hydrocarbon containing materials when treating a hydrocarbon containing formation229US 7,100,994 B2Shell Oil Company · 2006
- In situ recovery from a hydrocarbon containing formation using conductor-in-conduit heat sources with an electrically conductive material in the overburden224US 7,165,615 B2Shell Oil Company · 2007