E21B 43/003
Vibrating earth formations
Official title: {Vibrating earth formations}
E21B43/003 (Vibrating earth formations) appears on 294 US grants and 205 published applications in this corpus.
Search patents in E21B- Granted patents
- 294
- Published applications
- 205
- Assignees
- 139
- Inventors
- 476
- Latest grant
- 16 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 7 | 0 |
| 1977 | 6 | 0 |
| 1978 | 9 | 0 |
| 1979 | 2 | 0 |
| 1980 | 0 | 0 |
| 1981 | 5 | 0 |
| 1982 | 7 | 0 |
| 1983 | 5 | 0 |
| 1984 | 7 | 0 |
| 1985 | 7 | 0 |
| 1986 | 3 | 0 |
| 1987 | 11 | 0 |
| 1988 | 3 | 0 |
| 1989 | 4 | 0 |
| 1990 | 2 | 0 |
| 1991 | 2 | 0 |
| 1992 | 7 | 0 |
| 1993 | 2 | 0 |
| 1994 | 6 | 0 |
| 1995 | 6 | 0 |
| 1996 | 5 | 0 |
| 1997 | 3 | 0 |
| 1998 | 4 | 0 |
| 1999 | 2 | 0 |
| 2000 | 4 | 0 |
| 2001 | 6 | 3 |
| 2002 | 10 | 6 |
| 2003 | 2 | 2 |
| 2004 | 4 | 4 |
| 2005 | 3 | 6 |
| 2006 | 8 | 7 |
| 2007 | 1 | 3 |
| 2008 | 3 | 5 |
| 2009 | 1 | 11 |
| 2010 | 6 | 6 |
| 2011 | 5 | 11 |
| 2012 | 2 | 10 |
| 2013 | 11 | 11 |
| 2014 | 4 | 16 |
| 2015 | 11 | 12 |
| 2016 | 13 | 13 |
| 2017 | 15 | 19 |
| 2018 | 12 | 8 |
| 2019 | 13 | 15 |
| 2020 | 11 | 10 |
| 2021 | 5 | 6 |
| 2022 | 7 | 7 |
| 2023 | 10 | 5 |
| 2024 | 7 | 4 |
| 2025 | 4 | 3 |
| 2026 | 1 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Vibratory grouting rod with drilling and vibrating functions and method for using the same16 Jun 2026US 12,655,598 B2
- Methods and systems to stimulate rock surrounding a wellbore using ultrasound at a preferred frequency23 Sep 2025US 12,421,830 B1Saudi Arabian Oil Company
- Downhole pressure wave generating device29 Jul 2025US 12,371,971 B2Optimum Petroleum Services Inc.
- Method and apparatus for seismic stimulation of oil-bearing production formations22 Apr 2025US 12,281,545 B2Zencor Tools, LLP
- Acoustic stimulation8 Apr 2025US 12,270,283 B2Global Post Graystone Inc.
- Mechanical energy assisted hydraulic fracturing8 Oct 2026US 2026/0309014 A1
- Method and Apparatus for Rock Hydraulic Fracturing under Resonant Excitation19 Feb 2026US 2026/0049543 A1China University of Petroleum-Beijing
- Vibratory grouting rod with drilling and vibrating functions and method for using the same7 Aug 2025US 2025/0250761 A1BeSTDR Infrastructure Hospital (Pingyu)
- Acoustic stimulation26 Jun 2025US 2025/0207482 A1Global Post Graystone Inc.
- Systems and assemblies for enhanced oil recovery using ultrasonic-transient electromagnetic setup17 Apr 2025US 2025/0122787 A1Beijing Huahui Geoxplora Technology Co., Ltd
Most cited
By later US patents
- Method and apparatus for combating encroachment by in situ treated formations344US 4,576,231 ATexaco Inc. · 1986
- Method to increase the oil production from an oil reservoir306US 6,499,536 B1Eureka Oil ASA · 2002
- Recovery of hydrocarbons from partially exhausted oil wells by mechanical wave heating301US 4,049,053 A1977
- Methods of fluidized production of coal in situ300US 4,093,025 AIn Situ Technology, Inc. · 1978
- Method and apparatus for subterranean thermal conditioning299US 6,112,808 A2000