E21B 7/24
Drilling using vibrating or oscillating means
Official title: Drilling using vibrating or oscillating means, e.g. out-of-balance masses (percussion drilling E21B1/00)
E21B7/24 (Drilling using vibrating or oscillating means) appears on 402 US grants and 357 published applications in this corpus.
Search patents in E21B- Granted patents
- 402
- Published applications
- 357
- Assignees
- 205
- Inventors
- 640
- Latest grant
- 14 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 7 | 0 |
| 1982 | 0 | 0 |
| 1983 | 3 | 0 |
| 1984 | 0 | 0 |
| 1985 | 5 | 0 |
| 1986 | 5 | 0 |
| 1987 | 8 | 0 |
| 1988 | 5 | 0 |
| 1989 | 6 | 0 |
| 1990 | 3 | 0 |
| 1991 | 5 | 0 |
| 1992 | 4 | 0 |
| 1993 | 5 | 0 |
| 1994 | 3 | 0 |
| 1995 | 4 | 0 |
| 1996 | 5 | 0 |
| 1997 | 3 | 0 |
| 1998 | 8 | 0 |
| 1999 | 2 | 0 |
| 2000 | 2 | 0 |
| 2001 | 3 | 1 |
| 2002 | 2 | 5 |
| 2003 | 4 | 2 |
| 2004 | 4 | 7 |
| 2005 | 5 | 7 |
| 2006 | 3 | 7 |
| 2007 | 8 | 10 |
| 2008 | 6 | 4 |
| 2009 | 4 | 8 |
| 2010 | 10 | 20 |
| 2011 | 8 | 9 |
| 2012 | 9 | 21 |
| 2013 | 18 | 16 |
| 2014 | 9 | 28 |
| 2015 | 21 | 22 |
| 2016 | 15 | 22 |
| 2017 | 19 | 23 |
| 2018 | 21 | 28 |
| 2019 | 29 | 21 |
| 2020 | 30 | 22 |
| 2021 | 20 | 18 |
| 2022 | 13 | 21 |
| 2023 | 21 | 14 |
| 2024 | 14 | 8 |
| 2025 | 10 | 9 |
| 2026 | 9 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Vibratory burrowing probe for investigating subsurface regions of granular media in IG and low/micro gravity conditions14 Jul 2026US 12,680,392 B2Polyvalor, Limited Partnership
- Vibratory grouting rod with drilling and vibrating functions and method for using the same16 Jun 2026US 12,655,598 B2
- Detachable fluidisation device9 Jun 2026US 12,649,998 B2GBM Works IP B.V.
- On demand flow pulsing system5 May 2026US 12,618,292 B2National Oilwell Varco, L. P.
- Selectively activated friction reduction tool and method3 Mar 2026US 12,565,816 B2Rival Downhole Tools LC
- On demand flow pulsing system20 Aug 2026US 2026/0243134 A1National Oilwell Varco, L. P.
- Displacement of a tubular string through a wellbore7 May 2026US 2026/0125958 A1
- Advancing a tubular string in a wellbore7 May 2026US 2026/0125959 A1
- Electrically activated downhole valve for drilling applications5 Feb 2026US 2026/0036019 A1Dynomax Drilling Tools Inc.
- Cave cutting method for pillar construction2 Oct 2025US 2025/0305370 A1Nippon Telegraph and Telephone Corporation
Most cited
By later US patents
- Reduction of the frictional coefficient in a borehole by the use of vibration153US 4,384,625 AMobil Oil Corporation · 1983
- Downhole flow pulsing apparatus112US 6,279,670 B1Andergauge Limited · 2001
- Fluidic oscillator92US 5,165,438 A1992
- Apparatus for vibrating a pipe string in a borehole90US 4,890,682 AShell Oil Company · 1990
- Flow pulsing apparatus for use in drill string83US 4,819,745 AIntech Oil Tools Ltd · 1989