C09K 8/518
Foams
C09K8/518 (Foams) appears on 130 US grants and 126 published applications in this corpus.
Search patents in C09K- Granted patents
- 130
- Published applications
- 126
- Assignees
- 49
- Inventors
- 287
- Latest grant
- 3 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 2 | 0 |
| 1988 | 0 | 0 |
| 1989 | 6 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 5 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 3 | 0 |
| 2000 | 3 | 0 |
| 2001 | 2 | 0 |
| 2002 | 1 | 1 |
| 2003 | 1 | 8 |
| 2004 | 3 | 2 |
| 2005 | 2 | 4 |
| 2006 | 5 | 5 |
| 2007 | 2 | 3 |
| 2008 | 0 | 5 |
| 2009 | 1 | 5 |
| 2010 | 6 | 5 |
| 2011 | 7 | 6 |
| 2012 | 4 | 2 |
| 2013 | 2 | 4 |
| 2014 | 3 | 9 |
| 2015 | 6 | 4 |
| 2016 | 1 | 7 |
| 2017 | 6 | 3 |
| 2018 | 3 | 5 |
| 2019 | 2 | 6 |
| 2020 | 11 | 7 |
| 2021 | 6 | 10 |
| 2022 | 5 | 2 |
| 2023 | 6 | 9 |
| 2024 | 6 | 6 |
| 2025 | 7 | 5 |
| 2026 | 2 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Foam formulation and its use in temporary pipe plugging3 Mar 2026US 12,565,610 B2Petroleo Brasileiro S.A. - Petrobras
- Method of enhancing foam stability for stimulation of low pressure reservoirs24 Feb 2026US 12,560,063 B2
- Foamed gel system for water shut off in subterranean zones29 Apr 2025US 12,286,585 B2Saudi Arabian Oil Company
- Foam formulation and its use in temporary pipe plugging29 Apr 2025US 12,286,587 B2Petroleo Brasileiro S.A. - Petrobras
- Inner spacer for semiconductor device22 Apr 2025US 12,283,618 B2Taiwan Semiconductor Manufacturing Company.Ltd
- Method for designing construction parameters of nitrogen foam-carried gravel packing in high-loss horizontal wells20 Aug 2026US 2026/0244803 A1China University of Petroleum (East China)
- Chemical methods for cavitation inception in downhole environments25 Jun 2026US 2026/0176520 A1Aramco Innovations LLC
- Swellable elastomer sponge for sand management4 Jun 2026US 2026/0153014 A1Schlumberger Technology Corporation
- Furfuryl alcohol monomer consolidation treatment25 Dec 2025US 2025/0388801 A1Halliburton Energy Services.Inc.
- Inner spacer for semiconductor device24 Jul 2025US 2025/0236782 A1Taiwan Semiconductor Manufacturing Company.Ltd
Most cited
By later US patents
- Methods of generating gas in well treating fluids144US 6,722,434 B2Halliburton Energy Services.Inc. · 2004
- Polymeric well completion and remedial compositions and methods128US 5,945,387 AHalliburton Energy Services.Inc. · 1999
- Oil based compositions and method for temporarily sealing subterranean zones114US 6,561,273 B2Halliburton Energy Services.Inc. · 2003
- Methods and compositions for sealing subterranean zones105US 6,059,036 AHalliburton Energy Services.Inc. · 2000
- Methods for sealing subterranean zones using foamed resin102US 6,006,835 AHalliburton Energy Services.Inc. · 1999