C09K 8/035
Organic additives
C09K8/035 (Organic additives) appears on 1,494 US grants and 1,820 published applications in this corpus.
Search patents in C09K- Granted patents
- 1,494
- Published applications
- 1,820
- Assignees
- 483
- Inventors
- 2,894
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 3 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 5 | 0 |
| 1981 | 9 | 0 |
| 1982 | 9 | 0 |
| 1983 | 6 | 0 |
| 1984 | 15 | 0 |
| 1985 | 12 | 0 |
| 1986 | 5 | 0 |
| 1987 | 8 | 0 |
| 1988 | 6 | 0 |
| 1989 | 7 | 0 |
| 1990 | 4 | 0 |
| 1991 | 6 | 0 |
| 1992 | 9 | 0 |
| 1993 | 6 | 0 |
| 1994 | 1 | 0 |
| 1995 | 2 | 0 |
| 1996 | 5 | 0 |
| 1997 | 7 | 0 |
| 1998 | 7 | 0 |
| 1999 | 6 | 0 |
| 2000 | 7 | 0 |
| 2001 | 6 | 2 |
| 2002 | 5 | 6 |
| 2003 | 6 | 9 |
| 2004 | 6 | 12 |
| 2005 | 5 | 13 |
| 2006 | 2 | 22 |
| 2007 | 15 | 26 |
| 2008 | 10 | 25 |
| 2009 | 14 | 23 |
| 2010 | 27 | 37 |
| 2011 | 21 | 42 |
| 2012 | 22 | 49 |
| 2013 | 20 | 61 |
| 2014 | 37 | 103 |
| 2015 | 37 | 96 |
| 2016 | 62 | 163 |
| 2017 | 107 | 199 |
| 2018 | 129 | 157 |
| 2019 | 140 | 132 |
| 2020 | 135 | 125 |
| 2021 | 142 | 143 |
| 2022 | 109 | 85 |
| 2023 | 116 | 89 |
| 2024 | 81 | 80 |
| 2025 | 68 | 88 |
| 2026 | 23 | 33 |
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.
- Methods and compositions for volcanic ash lost circulation materials11 Aug 2026US 12,704,031 B2Saudi Arabian Oil Company
- Drilling fluid compositions comprising a polymerized biorenewable oil30 Jun 2026US 12,668,733 B2Ergon, Inc.
- Lost circulation material compositions utilizing spent drilling fluids and methods for using the same16 Jun 2026US 12,655,697 B2Saudi Arabian Oil Company
- Pourable wetting agents and methods associated therewith12 May 2026US 12,624,272 B2Saudi Arabian Oil Company
- Formation Maintenance Fluids with Flowback Enhancers to Improve Wellbore Operations8 Oct 2026US 2026/0308442 A1Baker Hughes Oilfield Operations LLC
- Method of making water-soluble polymers for use as shale encapsulators for drilling fluids24 Sep 2026US 2026/0286026 A1BASF SE
- Viscosity reducer and preparation method therefor and use thereof, and method for improving crude-oil pollution resistance of drilling fluid20 Aug 2026US 2026/0242655 A1China Petroleum & Chemical Corporation
- Nanomaterial-containing friction reducer for water-based drilling fluid, and preparation method therefor13 Aug 2026US 2026/0234460 A1China University of Petroleum (East China)
- Pourable wetting agents and methods associated therewith13 Aug 2026US 2026/0234462 A1Aramco Americas Company
Most cited
By later US patents
- Methods of sealing subterranean zones265US 5,913,364 AHalliburton Energy Services.Inc. · 1999
- Methods of sealing subterranean zones247US 6,167,967 AHalliburton Energy Services.Inc. · 2001
- Surfactant compositions and uses therefor215US 6,302,209 B1BJ Services Company · 2001
- Hydrated hydroxyethyl cellulose compositions213US 4,496,468 ANL Industries, Inc. · 1985
- Wellbore fluid146US 6,710,019 B12004