E21B 31/14
With means deflecting the direction of the tool
Official title: with means deflecting the direction of the tool, e.g. by use of knuckle joints
E21B31/14 (With means deflecting the direction of the tool) appears on 16 US grants and 12 published applications in this corpus.
Search patents in E21B- Granted patents
- 16
- Published applications
- 12
- Assignees
- 11
- Inventors
- 37
- Latest grant
- 12 Mar 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 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 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 1 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 1 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 1 |
| 2014 | 2 | 1 |
| 2015 | 1 | 0 |
| 2016 | 1 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 1 |
| 2019 | 0 | 1 |
| 2020 | 1 | 1 |
| 2021 | 0 | 2 |
| 2022 | 3 | 2 |
| 2023 | 1 | 0 |
| 2024 | 1 | 0 |
| 2025 | 0 | 1 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Steering pad apparatus and related methods12 Mar 2024US 11,927,095 B2Halliburton Energy Services.Inc.
- Fishing scanning tool17 Jan 2023US 11,555,369 B2Saudi Arabian Oil Company
- Lateral locating assembly for lateral intervention11 Oct 2022US 11,466,544 B2Halliburton Energy Services.Inc.
- Deflector assembly and efficient method for multi-stage fracturing a multilateral well using the same16 Aug 2022US 11,414,930 B2Halliburton Energy Services.Inc.
- Powered articulated magnetic fishing tool1 Feb 2022US 11,236,568 B2Saudi Arabian Oil Company
- Downhole tool16 Apr 2026US 2026/0103953 A1Welltec A/S
- Removable cartridge for a downhole fluid and solid separation system in a well3 Apr 2025US 2025/0109676 A1Halliburton Energy Services.Inc.
- Fishing scanning tool25 Aug 2022US 2022/0268120 A1Saudi Arabian Oil Company
- Lateral locating assembly for lateral intervention18 Aug 2022US 2022/0259949 A1Halliburton Energy Services.Inc.
- Powered Articulated Magnetic Fishing Tool23 Dec 2021US 2021/0396087 A1Saudi Arabian Oil Company
Most cited
By later US patents
- Apparatus and method for performing imaging and downhole operations at a work site in wellbores165US 6,041,860 ABaker Hughes Incorporated · 2000
- Self-aligning well tool guide21US 4,321,965 AOtis Engineering Corporation · 1982
- Well drilling tool14US 4,431,053 ATexaco Inc. · 1984
- Ice auger extractor for retrieving augers or similar devices from a bore hole10US 4,944,543 AThe United States of America as represented by the Secretary of the Army · 1990
- Self-centering downhole tool8US 8,851,193 B12014