E21B 10/345
Cutter shifted by fluid pressure
Official title: {cutter shifted by fluid pressure}
E21B10/345 (Cutter shifted by fluid pressure) appears on 54 US grants and 18 published applications in this corpus.
Search patents in E21B- Granted patents
- 54
- Published applications
- 18
- Assignees
- 18
- Inventors
- 74
- Latest grant
- 25 Jun 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 4 | 0 |
| 1981 | 5 | 0 |
| 1982 | 2 | 0 |
| 1983 | 2 | 0 |
| 1984 | 2 | 0 |
| 1985 | 1 | 0 |
| 1986 | 2 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 2 | 0 |
| 1990 | 2 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 2 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 2 | 2 |
| 2003 | 0 | 2 |
| 2004 | 2 | 0 |
| 2005 | 1 | 0 |
| 2006 | 1 | 0 |
| 2007 | 1 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 2 |
| 2010 | 0 | 0 |
| 2011 | 1 | 0 |
| 2012 | 0 | 2 |
| 2013 | 0 | 1 |
| 2014 | 0 | 0 |
| 2015 | 2 | 0 |
| 2016 | 1 | 1 |
| 2017 | 0 | 1 |
| 2018 | 0 | 0 |
| 2019 | 1 | 2 |
| 2020 | 2 | 2 |
| 2021 | 1 | 1 |
| 2022 | 2 | 1 |
| 2023 | 2 | 1 |
| 2024 | 2 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Radial cutting assembly for drilling tool25 Jun 2024US 12,018,530 B2
- Rock crushing unit for widening a pilot hole made on rocky terrain11 Jun 2024US 12,006,823 B2Hpm—Hydraulic Performance Machines Srl
- Underreamer26 Sep 2023US 11,767,715 B2Transco Manufacturing Australia Pty Ltd
- Deploying material to limit losses of drilling fluid in a wellbore9 May 2023US 11,643,878 B2Saudi Arabian Oil Company
- Packer apparatus12 Apr 2022US RE49,028 E1
- Radial cutting assembly for drilling tool1 Jun 2023US 2023/0167691 A1
- A rock crushing unit for widening a pilot hole made on rocky terrain2 Jun 2022US 2022/0170326 A1Hpm—Hydraulic Performance Machines Srl
- Deploying Material to Limit Losses of Drilling Fluid in a Wellbore30 Sep 2021US 2021/0301597 A1Saudi Arabian Oil Company
- Compression-set straddle packer with fluid pressure-boosted packer set1 Oct 2020US 2020/0308921 A1Exacta-Frac Energy Services, Inc.
- Underreamer30 Jul 2020US 2020/0240215 A1Transco Manufacturing Australia Pty Ltd
Most cited
By later US patents
- Process and apparatus for completing a well in an unconsolidated formation164US 5,255,741 AMobil Oil Corporation · 1993
- Stabilizer and rotary expansible drill bit apparatus113US 4,081,042 ATri-State Oil Tool Industries, Inc. · 1978
- Expandable stabilizer with roller reamer elements111US 8,028,767 B2Baker Hughes Incorporated · 2011
- Sonic apparatus and method for slurry well bore mining and production99US 4,366,988 A1983
- Remotely operable hydraulic underreamer99US 6,378,632 B1Smith International, Inc. · 2002