B03C 2201/02
Electrostatic separation of liquids from liquids
B03C2201/02 (Electrostatic separation of liquids from liquids) appears on 135 US grants and 132 published applications in this corpus.
Search patents in B03C- Granted patents
- 135
- Published applications
- 132
- Assignees
- 73
- Inventors
- 249
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 6 | 0 |
| 1981 | 3 | 0 |
| 1982 | 0 | 0 |
| 1983 | 4 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 2 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 3 | 0 |
| 1996 | 2 | 0 |
| 1997 | 2 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 2 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 2 |
| 2004 | 2 | 0 |
| 2005 | 0 | 4 |
| 2006 | 3 | 3 |
| 2007 | 1 | 4 |
| 2008 | 3 | 4 |
| 2009 | 1 | 9 |
| 2010 | 1 | 3 |
| 2011 | 3 | 8 |
| 2012 | 3 | 9 |
| 2013 | 8 | 4 |
| 2014 | 4 | 6 |
| 2015 | 5 | 4 |
| 2016 | 4 | 14 |
| 2017 | 4 | 7 |
| 2018 | 11 | 6 |
| 2019 | 6 | 9 |
| 2020 | 7 | 9 |
| 2021 | 10 | 10 |
| 2022 | 8 | 6 |
| 2023 | 9 | 7 |
| 2024 | 5 | 1 |
| 2025 | 2 | 2 |
| 2026 | 2 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Continuous and rapid perpetual electrostatic coalescence phase separation and demulsification of oil, water, and solids using plasma at standard conditions1 Sep 2026US 12,722,102 B2Lteoil LLC
- Electrostatic free water knockout for high water cut emulsions27 Jan 2026US 12,533,680 B1Cameron International Corporation
- Power unit phase angle for separation unit control30 Sep 2025US 12,427,441 B2Cameron International Corporation
- Bi-phase (Scott-T) transformer double voltage AC electrostatic coalescer25 Mar 2025US 12,257,531 B2Saudi Arabian Oil Company
- Electro-coalescer cell with turbulence-inducing shape for maximized performance12 Nov 2024US 12,139,424 B2FMC Technologies, Inc.
- Method for plasma treatment of a mixture of at least two liquid phases for the separation of the two liquid phases of the mixture13 Aug 2026US 2026/0234035 A1
- Method for protecting coalescer elements of an electrostatic coalescer device against electrically induced erosion and/or partial discharges20 Feb 2025US 2025/0058331 A1Sulzer Management AG
- Emulsion detection in electrical separators6 Feb 2025US 2025/0041763 A1Cameron International Corporation
- Power unit phase angle for separation unit control25 Jan 2024US 2024/0024798 A1Cameron International Corporation
- Bi-phase (scott-t) transformer double volted ac electrostatic coalescer21 Dec 2023US 2023/0405493 A1Saudi Arabian Oil Company
Most cited
By later US patents
- Electrode structures for electric treatment of fluids and filters using same119US 3,980,541 A1976
- Multiple laminar flow-based particle and cellular separation with laser steering62US 7,118,676 B2Arryx, Inc. · 2006
- Low gravity crude oil and water separator47US 4,257,895 A1981
- Multiple laminar flow-based particle and cellular separation with laser steering46US 7,402,131 B2Arryx, Inc. · 2008
- Fluid processor apparatus and method38US 4,238,326 A1980