C09K 8/84
Compositions based on water or polar solvents
Official title: Compositions based on water or polar solvents (C09K8/66, C09K8/82 take precedence)
C09K8/84 (Compositions based on water or polar solvents) appears on 2,134 US grants and 2,060 published applications in this corpus.
Search patents in C09K- Granted patents
- 2,134
- Published applications
- 2,060
- Assignees
- 543
- Inventors
- 3,284
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 11 | 0 |
| 1977 | 15 | 0 |
| 1978 | 21 | 0 |
| 1979 | 15 | 0 |
| 1980 | 25 | 0 |
| 1981 | 27 | 0 |
| 1982 | 38 | 0 |
| 1983 | 12 | 0 |
| 1984 | 34 | 0 |
| 1985 | 31 | 0 |
| 1986 | 33 | 0 |
| 1987 | 39 | 0 |
| 1988 | 34 | 0 |
| 1989 | 43 | 0 |
| 1990 | 29 | 0 |
| 1991 | 37 | 0 |
| 1992 | 39 | 0 |
| 1993 | 28 | 0 |
| 1994 | 29 | 0 |
| 1995 | 12 | 0 |
| 1996 | 14 | 0 |
| 1997 | 12 | 0 |
| 1998 | 21 | 0 |
| 1999 | 15 | 0 |
| 2000 | 12 | 0 |
| 2001 | 12 | 2 |
| 2002 | 12 | 9 |
| 2003 | 8 | 16 |
| 2004 | 16 | 24 |
| 2005 | 7 | 27 |
| 2006 | 26 | 43 |
| 2007 | 23 | 35 |
| 2008 | 11 | 48 |
| 2009 | 27 | 51 |
| 2010 | 37 | 79 |
| 2011 | 40 | 61 |
| 2012 | 36 | 76 |
| 2013 | 37 | 77 |
| 2014 | 58 | 104 |
| 2015 | 65 | 118 |
| 2016 | 63 | 179 |
| 2017 | 105 | 167 |
| 2018 | 118 | 151 |
| 2019 | 125 | 147 |
| 2020 | 127 | 152 |
| 2021 | 139 | 141 |
| 2022 | 134 | 99 |
| 2023 | 122 | 80 |
| 2024 | 71 | 86 |
| 2025 | 62 | 57 |
| 2026 | 27 | 31 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Extended- and multimodal-release compositions25 Aug 2026US 12,715,801 B2Finoric, LLC
- Well clean premium (WCP-1) system and method11 Aug 2026US 12,703,823 B2Hygt Chemical LLC
- Aqueous based, water-soluble polymer slurry system21 Jul 2026US 12,686,811 B2Terra-Ace Intermediate Holdings, LLC
- Subterranean formations14 Jul 2026US 12,680,015 B2Independence Oilfield Chemicals LLC
- Surface-treated, transportable ISO tanks and methods of reducing deposition of a friction reducer on a surface9 Jun 2026US 12,649,806 B2Aculon, Inc.
- Formation Maintenance Fluids with Flowback Enhancers to Improve Wellbore Operations8 Oct 2026US 2026/0308442 A1Baker Hughes Oilfield Operations LLC
- Subterranean formations24 Sep 2026US 2026/0286215 A1Independence Oilfield Chemicals LLC
- Method for modifying the permeability of a subterranean formation and related treatment fluid used in said method20 Aug 2026US 2026/0242657 A1ENI S. p. A.
- Method for modifying the permeability of a geological formation zone20 Aug 2026US 2026/0243145 A1
- Water-lock releasing chemical agent for oil and gas reservoirs, preparation method therefor and use thereof6 Aug 2026US 2026/0226342 A1China Petroleum & Chemical Corporation
Most cited
By later US patents
- Control of particulate flowback in subterranean wells341US 5,833,000 AHalliburton Energy Services.Inc. · 1998
- Control of fine particulate flowback in subterranean wells335US 5,853,048 AHalliburton Energy Services, Inc. · 1998
- Control of particulate flowback in subterranean wells303US 6,047,772 AHalliburton Energy Services.Inc. · 2000
- Control of fine particulate flowback in subterranean wells260US 5,775,425 AHalliburton Energy Services, Inc. · 1998
- Method of controlling particulate flowback in subterranean wells and introducing treatment chemicals256US 6,209,643 B1Halliburton Energy Services.Inc. · 2001