C09K 8/426
For plugging
Official title: {for plugging}
C09K8/426 (For plugging) appears on 396 US grants and 463 published applications in this corpus.
Search patents in C09K- Granted patents
- 396
- Published applications
- 463
- Assignees
- 144
- Inventors
- 969
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 2 |
| 2003 | 1 | 1 |
| 2004 | 3 | 6 |
| 2005 | 3 | 0 |
| 2006 | 2 | 3 |
| 2007 | 0 | 2 |
| 2008 | 4 | 13 |
| 2009 | 3 | 11 |
| 2010 | 13 | 12 |
| 2011 | 5 | 12 |
| 2012 | 10 | 14 |
| 2013 | 14 | 12 |
| 2014 | 11 | 19 |
| 2015 | 4 | 24 |
| 2016 | 17 | 32 |
| 2017 | 14 | 31 |
| 2018 | 30 | 27 |
| 2019 | 49 | 43 |
| 2020 | 20 | 37 |
| 2021 | 35 | 36 |
| 2022 | 37 | 22 |
| 2023 | 24 | 34 |
| 2024 | 47 | 31 |
| 2025 | 28 | 19 |
| 2026 | 18 | 20 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Industrial fluids with dilution resistance and tunable viscosity, and methods of making and using industrial fluids25 Aug 2026US 12,715,810 B2Blue Nose Technologies LLC
- Methods of repairing casings using a red mud sealant composition25 Aug 2026US 12,715,811 B2Saudi Arabian Oil Company
- Flexible composite25 Aug 2026US 12,716,020 B2Concrete Canvas Technology Ltd.
- Method for subsurface injection conformance improvement using micro calcium carbonate particles11 Aug 2026US 12,703,820 B2Millcreek Capital Management LLC
- Apparatus utilizing shape-memory and self-assembly to plug relatively wide remote fractures21 Jul 2026US 12,686,804 B2The Penn State Research Foundation
- Apparatus utilizing shape-memory and self-assembly to plug relatively wide remote fractures8 Oct 2026US 2026/0308440 A1The Penn State Research Foundation
- Formulation for abandoning oil wells and process for producing said formulation24 Sep 2026US 2026/0286208 A1Petroleo Brasileiro S.A. - Petrobras
- Method for Generating CO2 In Situ for Oilfield Applications Using Propylene Carbonate10 Sep 2026US 2026/0265602 A1Baker Hughes Oilfield Operations LLC
- Degradable rubber composition, rubber member, sealing member, and method for producing degradable rubber composition3 Sep 2026US 2026/0258220 A1Kokoku Intech Co., Ltd.
- Plug barrier material27 Aug 2026US 2026/0251034 A1Isol8 (Holdings) Limited
Most cited
By later US patents
- Method and composition for forming water impermeable barrier143US 6,667,279 B1Wallace Oy · 2003
- Cement compositions comprising latex and a nano-particle and associated methods121US 7,784,542 B2Halliburton Energy Services.Inc. · 2010
- Cementitious compositions and cementitious slurries for permanently plugging abandoned wells and processes and methods therefor86US 6,767,398 B22004
- Methods of plugging and abandoning a well using compositions comprising cement kiln dust and pumicite84US 8,307,899 B2Halliburton Energy Services.Inc. · 2012
- Settable compositions comprising cement kiln dust and swellable particles70US 7,607,482 B2Halliburton Energy Services.Inc. · 2009