C09K 8/14
Clay-containing compositions
Official title: Clay-containing compositions (containing inorganic compounds C09K8/05)
C09K8/14 (Clay-containing compositions) appears on 1,196 US grants and 668 published applications in this corpus.
Search patents in C09K- Granted patents
- 1,196
- Published applications
- 668
- Assignees
- 358
- Inventors
- 1,730
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 24 | 0 |
| 1977 | 12 | 0 |
| 1978 | 11 | 0 |
| 1979 | 8 | 0 |
| 1980 | 20 | 0 |
| 1981 | 15 | 0 |
| 1982 | 23 | 0 |
| 1983 | 19 | 0 |
| 1984 | 39 | 0 |
| 1985 | 36 | 0 |
| 1986 | 32 | 0 |
| 1987 | 34 | 0 |
| 1988 | 24 | 0 |
| 1989 | 19 | 0 |
| 1990 | 16 | 0 |
| 1991 | 28 | 0 |
| 1992 | 25 | 0 |
| 1993 | 22 | 0 |
| 1994 | 39 | 0 |
| 1995 | 23 | 0 |
| 1996 | 19 | 0 |
| 1997 | 30 | 0 |
| 1998 | 22 | 0 |
| 1999 | 15 | 0 |
| 2000 | 21 | 0 |
| 2001 | 23 | 8 |
| 2002 | 16 | 8 |
| 2003 | 18 | 32 |
| 2004 | 27 | 35 |
| 2005 | 12 | 29 |
| 2006 | 27 | 33 |
| 2007 | 21 | 27 |
| 2008 | 14 | 17 |
| 2009 | 23 | 18 |
| 2010 | 16 | 22 |
| 2011 | 14 | 15 |
| 2012 | 11 | 21 |
| 2013 | 15 | 22 |
| 2014 | 16 | 24 |
| 2015 | 16 | 28 |
| 2016 | 17 | 15 |
| 2017 | 31 | 27 |
| 2018 | 29 | 54 |
| 2019 | 39 | 42 |
| 2020 | 47 | 50 |
| 2021 | 50 | 42 |
| 2022 | 37 | 22 |
| 2023 | 32 | 18 |
| 2024 | 34 | 32 |
| 2025 | 26 | 21 |
| 2026 | 9 | 6 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Method for mitigating barite sag in water-based mud with thermochemical fluid11 Aug 2026US 12,704,032 B2King Fahd University of Petroleum and Minerals
- Lignin-based compositions and related methods26 May 2026US 12,637,605 B2LignoSol IP Limited
- Water/gas ratio reducer compounds26 May 2026US 12,637,930 B2Petroraza SAS
- Methods for freeing differentially stuck pipes12 May 2026US 12,624,271 B2Saudi Arabian Oil Company
- Gemini surfactant as foaming agent for foam drilling28 Apr 2026US 12,612,543 B2King Fahd University of Petroleum and Minerals
- Lignin-based compositions and related methods10 Sep 2026US 2026/0265600 A1LignoSol IP Limited
- Nano clay mineral-based drilling mud and method for producing same20 Aug 2026US 2026/0242656 A1Industry-Academic Cooperation Foundation Gyeongsang National University
- Temperature-resistant thixotropic agent, and preparation method and use thereof23 Jul 2026US 2026/0209592 A1China University of Petroleum (East China)
- Method of using steel-production byproduct heavy agent in subterranean formation fluids23 Jul 2026US 2026/0210204 A1King Fahd University of Petroleum and Minerals
- Porous material for wellbore thermal insulation in drilling and its preparation method and application11 Jun 2026US 2026/0159745 A1China Univesity of Petroleum (East China)
Most cited
By later US patents
- Dilution of drilling fluid in forming cement slurries191US 5,314,022 AShell Oil Company · 1994
- Methods of consolidating formations or forming chemical casing or both while drilling188US 6,702,044 B2Halliburton Energy Services.Inc. · 2004
- Methods of treating subterranean formation using borate cross-linking compositions187US 6,024,170 AHalliburton Energy Services.Inc. · 2000
- Set delayed cement compositions and methods of using the same186US 4,676,832 AHalliburton Company · 1987
- Cementing oil and gas wells using converted drilling fluid181US 4,883,125 AAtlantic Richfield Company · 1989