C09K 8/601
Using spacer compositions
Official title: {using spacer compositions}
C09K8/601 (Using spacer compositions) appears on 77 US grants and 56 published applications in this corpus.
Search patents in C09K- Granted patents
- 77
- Published applications
- 56
- Assignees
- 30
- Inventors
- 140
- Latest grant
- 25 Feb 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 2 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 4 | 0 |
| 1985 | 4 | 0 |
| 1986 | 3 | 0 |
| 1987 | 0 | 0 |
| 1988 | 2 | 0 |
| 1989 | 2 | 0 |
| 1990 | 2 | 0 |
| 1991 | 1 | 0 |
| 1992 | 2 | 0 |
| 1993 | 0 | 0 |
| 1994 | 2 | 0 |
| 1995 | 1 | 0 |
| 1996 | 3 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 2 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 2 |
| 2005 | 0 | 1 |
| 2006 | 3 | 2 |
| 2007 | 1 | 1 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 1 |
| 2013 | 2 | 4 |
| 2014 | 1 | 1 |
| 2015 | 1 | 6 |
| 2016 | 0 | 3 |
| 2017 | 2 | 5 |
| 2018 | 6 | 8 |
| 2019 | 5 | 5 |
| 2020 | 7 | 4 |
| 2021 | 6 | 7 |
| 2022 | 4 | 3 |
| 2023 | 2 | 2 |
| 2024 | 2 | 0 |
| 2025 | 1 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Compositions useful for diverting or stopping fluids in subterranean operations25 Feb 2025US 12,234,407 B2Finoric, LLC
- Method for generating self-propped hydraulic fractures22 Oct 2024US 12,123,293 B2Quidnet Energy Inc.
- Oxidizing gasses for carbon dioxide-based fracturing fluids15 Oct 2024US 12,116,528 B2Saudi Arabian Oil Company
- Oxidizing gasses for carbon dioxide-based fracturing fluids1 Aug 2023US 11,713,411 B2Saudi Arabian Oil Company
- Using acidic balls for acid stimulation in carbonate reservoirs28 Feb 2023US 11,591,512 B2Saudi Arabian Oil Company
- Method for Generating Self-Propped Hydraulic Fractures6 Feb 2025US 2025/0043671 A1Quidnet Energy Inc.
- Oxidizing gasses for carbon dioxide-based fracturing fluids5 Oct 2023US 2023/0313022 A1Saudi Arabian Oil Company
- Method for Generating Self-Propped Hydraulic Fractures5 Oct 2023US 2023/0313657 A1Quidnet Energy Inc.
- Using acidic balls for acid stimulation in carbonate reservoirs15 Sep 2022US 2022/0290040 A1Saudi Arabian Oil Company
- Oxidizing gasses for carbon dioxide-based fracturing fluids7 Jul 2022US 2022/0213376 A1Saudi Arabian Oil Company
Most cited
By later US patents
- Fluids for oilfield use having high-solids content174US 5,518,996 ADowell, a division of Schlumberger Technology Corporation · 1996
- Pre-treatment methods for polymer-containing fluids129US 6,138,760 ABJ Services Company · 2000
- Spacer fluids122US 5,030,366 AAtlantic Richfield Company · 1991
- Method and spacer fluid composition for displacing drilling fluid from a wellbore107US 5,866,517 AAtlantic Richfield Company · 1999
- Well completion spacer fluids and methods95US 5,789,352 AAtlantic Richfield Company · 1998