C10G 33/04
Dewatering or demulsification of hydrocarbon oils: with chemical means
Official title: with chemical means
C10G33/04 (Dewatering or demulsification of hydrocarbon oils: with chemical means) appears on 566 US grants and 456 published applications in this corpus.
Search patents in C10G- Granted patents
- 566
- Published applications
- 456
- Assignees
- 250
- Inventors
- 1,271
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 6 | 0 |
| 1978 | 5 | 0 |
| 1979 | 3 | 0 |
| 1980 | 10 | 0 |
| 1981 | 8 | 0 |
| 1982 | 15 | 0 |
| 1983 | 28 | 0 |
| 1984 | 16 | 0 |
| 1985 | 19 | 0 |
| 1986 | 13 | 0 |
| 1987 | 9 | 0 |
| 1988 | 10 | 0 |
| 1989 | 12 | 0 |
| 1990 | 7 | 0 |
| 1991 | 7 | 0 |
| 1992 | 9 | 0 |
| 1993 | 6 | 0 |
| 1994 | 4 | 0 |
| 1995 | 10 | 0 |
| 1996 | 4 | 0 |
| 1997 | 8 | 0 |
| 1998 | 7 | 0 |
| 1999 | 8 | 0 |
| 2000 | 9 | 0 |
| 2001 | 5 | 2 |
| 2002 | 4 | 11 |
| 2003 | 6 | 10 |
| 2004 | 4 | 14 |
| 2005 | 4 | 8 |
| 2006 | 5 | 4 |
| 2007 | 6 | 9 |
| 2008 | 1 | 7 |
| 2009 | 5 | 17 |
| 2010 | 10 | 12 |
| 2011 | 4 | 21 |
| 2012 | 9 | 16 |
| 2013 | 13 | 18 |
| 2014 | 9 | 36 |
| 2015 | 17 | 30 |
| 2016 | 18 | 29 |
| 2017 | 35 | 29 |
| 2018 | 26 | 20 |
| 2019 | 33 | 24 |
| 2020 | 17 | 29 |
| 2021 | 32 | 22 |
| 2022 | 20 | 21 |
| 2023 | 10 | 20 |
| 2024 | 18 | 18 |
| 2025 | 13 | 20 |
| 2026 | 6 | 9 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Compositions and methods for breaking foams and emulsions11 Aug 2026US 12,703,822 B2Chevron U.S.A.Inc.
- Compounds for breaking emulsions5 May 2026US 12,618,014 B2King Fadh University of Petroleum and Minerals
- Nanoparticles and polymers for contaminant removal3 Mar 2026US 12,565,621 B2Baker Hughes Oilfield Operations LLC
- Random acrylic terpolymers of controlled molecular mass employed in the destabilization of W/O simple and/or O/W/O complex emulsions in crude oils10 Feb 2026US 12,545,843 B2Instituto Mexicano Del Petroleo
- Compositions and methods for breaking foams and emulsions20 Jan 2026US 12,528,982 B2Chevron U.S.A.Inc.
- Demulsifying method1 Oct 2026US 2026/0297438 A1Innospec Limited
- Demulsifier screening and characterization using modified karl fischer reagent1 Oct 2026US 2026/0298897 A1Saudi Arabian Oil Company
- Demulsifier compositions comprising copolymers, methods of producing and using the same23 Jul 2026US 2026/0209421 A1Saudi Arabian Oil Company
- Method for creating crude oil synthesized fluid having surfactant and demulsification properties14 May 2026US 2026/0132341 A1The Texas A&M University System
- Quench System Solvation16 Apr 2026US 2026/0103642 A1
Most cited
By later US patents
- Dense star polymers having core, core branches, terminal groups293US 4,507,466 AThe Dow Chemical Company · 1985
- Dense star polymers having two dimensional molecular diameter280US 4,587,329 AThe Dow Chemical Company · 1986
- Dense star polymers and dendrimers260US 4,568,737 AThe Dow Chemical Company · 1986
- Dense star polymer227US 4,558,120 AThe Dow Chemical Company · 1985
- Hydrolytically-stable dense star polyamine191US 4,631,337 AThe Dow Chemical Company · 1986