C09K 8/54
Compositions for in situ inhibition of corrosion in boreholes or wells
C09K8/54 (Compositions for in situ inhibition of corrosion in boreholes or wells) appears on 821 US grants and 837 published applications in this corpus.
Search patents in C09K- Granted patents
- 821
- Published applications
- 837
- Assignees
- 283
- Inventors
- 1,550
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 6 | 0 |
| 1978 | 3 | 0 |
| 1979 | 4 | 0 |
| 1980 | 9 | 0 |
| 1981 | 3 | 0 |
| 1982 | 8 | 0 |
| 1983 | 5 | 0 |
| 1984 | 10 | 0 |
| 1985 | 19 | 0 |
| 1986 | 8 | 0 |
| 1987 | 13 | 0 |
| 1988 | 12 | 0 |
| 1989 | 14 | 0 |
| 1990 | 11 | 0 |
| 1991 | 10 | 0 |
| 1992 | 17 | 0 |
| 1993 | 10 | 0 |
| 1994 | 7 | 0 |
| 1995 | 9 | 0 |
| 1996 | 9 | 0 |
| 1997 | 8 | 0 |
| 1998 | 13 | 0 |
| 1999 | 9 | 0 |
| 2000 | 9 | 0 |
| 2001 | 10 | 1 |
| 2002 | 7 | 5 |
| 2003 | 8 | 12 |
| 2004 | 5 | 16 |
| 2005 | 4 | 10 |
| 2006 | 3 | 13 |
| 2007 | 7 | 10 |
| 2008 | 9 | 12 |
| 2009 | 6 | 24 |
| 2010 | 10 | 15 |
| 2011 | 14 | 22 |
| 2012 | 11 | 21 |
| 2013 | 16 | 40 |
| 2014 | 13 | 34 |
| 2015 | 27 | 37 |
| 2016 | 28 | 59 |
| 2017 | 31 | 64 |
| 2018 | 33 | 49 |
| 2019 | 47 | 42 |
| 2020 | 38 | 70 |
| 2021 | 51 | 46 |
| 2022 | 49 | 32 |
| 2023 | 50 | 56 |
| 2024 | 51 | 53 |
| 2025 | 33 | 59 |
| 2026 | 30 | 35 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Corrosion inhibition compositions and methods of use in sour environments6 Oct 2026US 12,753,338 B2King Fahd University of Petroleum and Minerals
- Corrosion-inhibiting agents for reducing dissolved oxygen concentrations within upstream oilfield systems22 Sep 2026US 12,742,111 B2Finoric, LLC
- Aqueous formulation of oil-soluble corrosion inhibitor, and preparation method and regeneration method thereof22 Sep 2026US 12,742,119 B2PetroChina Company Limited
- Wellbore treatment to remove damage and increase production1 Sep 2026US 12,723,490 B2Aegis Chemical Solutions, LLC
- Succinic anhydride-derived polyesters as corrosion inhibitors25 Aug 2026US 12,716,028 B2Ecolab USA Inc.
- Composition and methods for inhibiting corrosion of metal during acidizing a wellbore in a subterranean formation for fracking24 Sep 2026US 2026/0286211 A1
- Method of inhibiting corrosion of metal piping in an oil/gas well3 Sep 2026US 2026/0258301 A1Imam Abdulrahman Bin Faisal University
- Corrosion inhibitor compositions and methods of use thereof27 Aug 2026US 2026/0250570 A1ChampionX LLC
- Compositions and methods of removing iron sulfide scales from low pressure gas wells30 Jul 2026US 2026/0218037 A1Saudi Arabian Oil Company
- Dipyrazolopyridine-based corrosion inhibitor compositions and methods thereof16 Jul 2026US 2026/0201242 A1King Fahd University of Petroleum and Minerals
Most cited
By later US patents
- Control of fine particulate flowback in subterranean wells335US 5,853,048 AHalliburton Energy Services, Inc. · 1998
- Control of fine particulate flowback in subterranean wells260US 5,775,425 AHalliburton Energy Services, Inc. · 1998
- Control of fine particulate flowback in subterranean wells215US 5,871,049 AHalliburton Energy Services.Inc. · 1999
- Process for treatment of petroleum acids with ammonia123US 6,258,258 B1Exxon Research & Engineering Co. · 2001
- Suppression of the evolution of hydrogen sulfide gases97US 5,074,991 APetrolite Corporation · 1991