C09K 8/605
Containing biocides
Official title: {containing biocides}
C09K8/605 (Containing biocides) appears on 163 US grants and 222 published applications in this corpus.
Search patents in C09K- Granted patents
- 163
- Published applications
- 222
- Assignees
- 105
- Inventors
- 458
- Latest grant
- 21 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 3 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 3 | 0 |
| 1991 | 2 | 0 |
| 1992 | 3 | 0 |
| 1993 | 0 | 0 |
| 1994 | 4 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 2 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 1 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 1 | 1 |
| 2007 | 0 | 0 |
| 2008 | 0 | 3 |
| 2009 | 1 | 2 |
| 2010 | 2 | 5 |
| 2011 | 1 | 1 |
| 2012 | 2 | 8 |
| 2013 | 2 | 10 |
| 2014 | 4 | 12 |
| 2015 | 4 | 25 |
| 2016 | 5 | 24 |
| 2017 | 9 | 28 |
| 2018 | 18 | 25 |
| 2019 | 21 | 12 |
| 2020 | 15 | 14 |
| 2021 | 11 | 19 |
| 2022 | 13 | 7 |
| 2023 | 10 | 11 |
| 2024 | 10 | 5 |
| 2025 | 5 | 4 |
| 2026 | 3 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Environmentally friendly biocidal quaternized amine compound21 Jul 2026US 12,685,311 B2Baker Hughes Oilfield Operations LLC
- Systems and methods for applying a biocide using a precursor biocide7 Jul 2026US 12,674,088 B1Schlumberger Technology Corporation
- Hydrogen production from iron-rich formations17 Mar 2026US 12,577,865 B1Saudi Arabian Oil Company
- Autonomous chemical treatment system and method for drilling and completion rigs30 Dec 2025US 12,509,966 B2Petroleo Brasileiro S.A. - Petrobras
- Stimulation of wells in nano-darcy shale formations9 Sep 2025US 12,410,362 B2Flex-Chem Holding Company, LLC
- Compositions and methods of biocide potentiation8 Oct 2026US 2026/0308443 A1Solugen, Inc.
- Stimulation of wells in nano-darcy shale formations11 Jun 2026US 2026/0159752 A1Flex-Chem Holding Company, LLC
- Use of peroxy gluconic acid in various treatment fluids28 May 2026US 2026/0146197 A1
- Infused and coated proppant containing chemical treatment agents and methods of using same5 Mar 2026US 2026/0062604 A1Carbo Ceramics Inc.
- Eliminating microbial hydrogen consumption in subsurface hydrogen storage12 Feb 2026US 2026/0042611 A1ExxonMobil Technology and Engineering Company
Most cited
By later US patents
- Bacteria-based and enzyme-based mechanisms and products for viscosity reduction breaking of viscoelastic fluids57US 7,052,901 B2Baker Hughes Incorporated · 2006
- Treatment fluids having biocide and friction reducing properties and associated methods56US 7,712,534 B2Halliburton Energy Services.Inc. · 2010
- Methods of converting an inactive biocide into an active biocide using a chemical reaction53US 8,791,054 B2Halliburton Energy Services.Inc. · 2014
- Wellbore fluid additives of fibrillated fibers and methods of use51US 9,957,432 B2Halliburton Energy Services.Inc. · 2018
- Process for producing or cleaning high pressure water injection wells37US 4,945,992 A1990