E21B 7/203
Using down-hole drives
Official title: {using down-hole drives}
E21B7/203 (Using down-hole drives) appears on 33 US grants and 35 published applications in this corpus.
Search patents in E21B- Granted patents
- 33
- Published applications
- 35
- Assignees
- 20
- Inventors
- 74
- Latest grant
- 20 May 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 2 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 2 |
| 2005 | 0 | 0 |
| 2006 | 0 | 1 |
| 2007 | 1 | 0 |
| 2008 | 0 | 2 |
| 2009 | 0 | 1 |
| 2010 | 2 | 0 |
| 2011 | 2 | 1 |
| 2012 | 0 | 2 |
| 2013 | 2 | 2 |
| 2014 | 0 | 2 |
| 2015 | 3 | 7 |
| 2016 | 0 | 2 |
| 2017 | 5 | 5 |
| 2018 | 3 | 3 |
| 2019 | 3 | 2 |
| 2020 | 4 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 1 |
| 2023 | 0 | 0 |
| 2024 | 1 | 1 |
| 2025 | 1 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Rigless drilling and wellhead installation20 May 2025US 12,305,513 B2Vetco Gray Scandinavia.AS
- Rigless drilling and wellhead installation20 Feb 2024US 11,905,831 B2Vetco Gray Scandinavia.AS
- Downhole force generating tool22 Dec 2020US 10,871,035 B2Thru Tubing Solutions, Inc.
- Bypass valve3 Nov 2020US 10,822,896 B2Baker Hughes, A Ge Company, LLC
- System and method for laying underground cables or underground lines in the ground near the surface4 Aug 2020US 10,734,793 B2Herrenknecht AG
- Drilling unit and method for producing a foundation in soil and/or a foundation under water29 May 2025US 2025/0171978 A1
- Rigless drilling and wellhead installation2 May 2024US 2024/0141731 A1Vetco Gray Scandinavia AS
- Rigless drilling and wellhead installation23 Jun 2022US 2022/0195805 A1Vetco Gray Scandinavia AS
- Downhole force generating tool26 Sep 2019US 2019/0292855 A1Thru Tubing Solutions, Inc.
- Milling Bypass Valve9 May 2019US 2019/0136653 A1Baker Hughes, A Ge Company, LLC
Most cited
By later US patents
- Running bore-lining tubulars74US 7,849,927 B2Deep Casing Tools, Ltd. · 2010
- Methods and apparatus for wellbore construction and completion47US 7,311,148 B2Weatherford/Lamb, Inc. · 2007
- Method and apparatus for laying pipes in the ground32US 4,024,721 AKabushiki Kaisha Komatsu Seisakusho · 1977
- Method and apparatus for sinking a cased borehole for producing cased pile foundations23US 4,202,416 AStahl- und Apparatebau Hans Leffer GmbH · 1980
- Method of laying pipes in the ground19US 4,020,641 AKabushiki Kaisha Komatsu Seisakusho · 1977