C09K 8/80
Compositions for reinforcing fractures
Official title: Compositions for reinforcing fractures, e.g. compositions of proppants used to keep the fractures open
C09K8/80 (Compositions for reinforcing fractures) appears on 1,766 US grants and 2,223 published applications in this corpus.
Search patents in C09K- Granted patents
- 1,766
- Published applications
- 2,223
- Assignees
- 474
- Inventors
- 2,588
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 3 | 0 |
| 1978 | 3 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 2 | 0 |
| 1983 | 1 | 0 |
| 1984 | 5 | 0 |
| 1985 | 8 | 0 |
| 1986 | 9 | 0 |
| 1987 | 11 | 0 |
| 1988 | 5 | 0 |
| 1989 | 8 | 0 |
| 1990 | 9 | 0 |
| 1991 | 4 | 0 |
| 1992 | 3 | 0 |
| 1993 | 7 | 0 |
| 1994 | 4 | 0 |
| 1995 | 6 | 0 |
| 1996 | 9 | 0 |
| 1997 | 6 | 0 |
| 1998 | 7 | 0 |
| 1999 | 10 | 0 |
| 2000 | 7 | 0 |
| 2001 | 10 | 1 |
| 2002 | 5 | 4 |
| 2003 | 7 | 20 |
| 2004 | 18 | 32 |
| 2005 | 9 | 45 |
| 2006 | 28 | 52 |
| 2007 | 30 | 49 |
| 2008 | 25 | 64 |
| 2009 | 22 | 54 |
| 2010 | 47 | 77 |
| 2011 | 53 | 71 |
| 2012 | 53 | 85 |
| 2013 | 46 | 75 |
| 2014 | 57 | 117 |
| 2015 | 63 | 124 |
| 2016 | 69 | 213 |
| 2017 | 118 | 180 |
| 2018 | 165 | 197 |
| 2019 | 155 | 173 |
| 2020 | 131 | 149 |
| 2021 | 141 | 132 |
| 2022 | 128 | 86 |
| 2023 | 106 | 70 |
| 2024 | 65 | 61 |
| 2025 | 51 | 57 |
| 2026 | 32 | 35 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Surface treatment compositions used for carbon sequestration, hydraulic fracturing and increasing oil production from a subterranean formation, and method of hydraulic fracturing29 Sep 2026US 12,747,386 B2Aculon, Inc.
- Reverse emulsion for hydraulic fracturing22 Sep 2026US 12,742,112 B2Snf Group
- Method for processing sampled proppant during hydraulic fracturing22 Sep 2026US 12,742,385 B2Gti Energy
- Method for hydraulic fracturing of conventional and unconventional reservoirs by introducing energized fluid8 Sep 2026US 12,729,617 B2Schlumberger Technology Corporation
- Foamed fracturing fluid with scale protection1 Sep 2026US 12,723,189 B1Halliburton Energy Services.Inc.
- Hydraulic fracturing method using lightweight proppant particles to reduce erosion and improve conductivity8 Oct 2026US 2026/0309016 A1ExxonMobil Technology and Engineering Company
- Cementitious reagents, methods of manufacturing and uses thereof1 Oct 2026US 2026/0296966 A1Terra Co2 Technology Holdings, Inc.
- Particulate compositions for iron sulfide remediation1 Oct 2026US 2026/0297419 A1ChampionX LLC
- Electrically conductive proppant and methods for detecting, locating and characterizing the electrically conductive proppant24 Sep 2026US 2026/0286214 A1Carbo Ceramics Inc.
- Fluid coking for proppant material production24 Sep 2026US 2026/0286228 A1ExxonMobil Technology and Engineering Company
Most cited
By later US patents
- Control of particulate flowback in subterranean wells379US 5,330,005 ADowell Schlumberger Incorporated · 1994
- Control of particulate flowback in subterranean wells372US 5,501,275 ADowell, a division of Schlumberger Technology Corporation · 1996
- Control of particulate flowback in subterranean wells358US 5,439,055 ADowell, a division of Schlumberger Technology Corporation · 1995
- Compositions and methods for hydraulic fracturing351US 6,169,058 ABJ Services Company · 2001
- Control of particulate flowback in subterranean wells341US 5,833,000 AHalliburton Energy Services.Inc. · 1998