C09K 8/34
Organic liquids
C09K8/34 (Organic liquids) appears on 290 US grants and 286 published applications in this corpus.
Search patents in C09K- Granted patents
- 290
- Published applications
- 286
- Assignees
- 135
- Inventors
- 599
- Latest grant
- 17 Feb 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 3 | 0 |
| 1993 | 6 | 0 |
| 1994 | 8 | 0 |
| 1995 | 7 | 0 |
| 1996 | 5 | 0 |
| 1997 | 7 | 0 |
| 1998 | 12 | 0 |
| 1999 | 4 | 0 |
| 2000 | 8 | 0 |
| 2001 | 6 | 0 |
| 2002 | 4 | 2 |
| 2003 | 5 | 15 |
| 2004 | 3 | 8 |
| 2005 | 3 | 10 |
| 2006 | 7 | 4 |
| 2007 | 9 | 14 |
| 2008 | 5 | 7 |
| 2009 | 10 | 5 |
| 2010 | 11 | 8 |
| 2011 | 8 | 10 |
| 2012 | 3 | 22 |
| 2013 | 5 | 9 |
| 2014 | 10 | 20 |
| 2015 | 6 | 17 |
| 2016 | 12 | 19 |
| 2017 | 10 | 16 |
| 2018 | 13 | 14 |
| 2019 | 10 | 20 |
| 2020 | 23 | 21 |
| 2021 | 19 | 16 |
| 2022 | 18 | 10 |
| 2023 | 14 | 7 |
| 2024 | 9 | 3 |
| 2025 | 3 | 7 |
| 2026 | 1 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Filter cake removal treatment fluid with chelating agent and viscoelastic surfactant17 Feb 2026US 12,552,981 B2Saudi Arabian Oil Company
- Method of removing hydrogen sulfide from a subterranean geological formation with a zeolitic imidazolate framework in waste cooking oil-based drilling fluids30 Sep 2025US 12,428,590 B1King Fahd University of Petroleum and Minerals
- High-performance primary emulsifier for invert-emulsion oil based mud29 Apr 2025US 12,286,584 B2Saudi Arabian Oil Company
- Method of removing hydrogen sulfide from a subterranean geological formation with an imidazolate-based nanomaterial in an oil-based drilling fluid8 Apr 2025US 12,270,266 B1King Fahd University of Petroleum and Minerals
- Apparatus and method for measuring settling of weighting materials in drilling and completion fluids24 Dec 2024US 12,174,169 B2Saudi Arabian Oil Company
- Imaging fluid comprising a plant-based oil, and method for subsurface imaging in a borehole18 Jun 2026US 2026/0168374 A1Novamera Inc.
- Drilling fluid compositions comprising a polymerized biorenewable oil7 May 2026US 2026/0125593 A1Ergon, Inc.
- Lubricant for drilling and completion fluids18 Dec 2025US 2025/0382539 A1Halliburton Energy Services.Inc.
- Wetting agent compositions, and related methods and drilling fluids including the wetting agent compositions11 Dec 2025US 2025/0376613 A1Schlumberger Technology Corporation
- Filter cake removal treatment fluid with chelating agent and viscoelastic surfactant11 Dec 2025US 2025/0376614 A1Saudi Arabian Oil Company
Most cited
By later US patents
- Memory controller for a microprocessor for detecting a failure of speculation on the physical nature of a component being addressed230US 5,832,205 ATransmeta Corporation · 1998
- Solvent soaps and methods employing same152US 5,723,423 AUnion Oil Company of California, dba UNOCAL · 1998
- Method and apparatus for a monodiameter wellbore, monodiameter casing, monobore, and/or monowell137US 7,066,284 B2Halliburton Energy Services.Inc. · 2006
- Drilling fluids and muds containing selected ester oils101US 5,252,554 ABaroid Limited · 1993
- Oil based synthetic hydrocarbon drilling fluid100US 5,189,012 AM-I Drilling Fluids Company · 1993