E21B 29/005
With a radially-expansible cutter rotating inside the pipe
Official title: {with a radially-expansible cutter rotating inside the pipe, e.g. for cutting an annular window}
E21B29/005 (With a radially-expansible cutter rotating inside the pipe) appears on 347 US grants and 349 published applications in this corpus.
Search patents in E21B- Granted patents
- 347
- Published applications
- 349
- Assignees
- 109
- Inventors
- 515
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 2 | 0 |
| 1988 | 1 | 0 |
| 1989 | 2 | 0 |
| 1990 | 2 | 0 |
| 1991 | 11 | 0 |
| 1992 | 4 | 0 |
| 1993 | 3 | 0 |
| 1994 | 3 | 0 |
| 1995 | 2 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 7 | 0 |
| 1999 | 2 | 0 |
| 2000 | 3 | 0 |
| 2001 | 3 | 1 |
| 2002 | 7 | 10 |
| 2003 | 7 | 9 |
| 2004 | 7 | 10 |
| 2005 | 10 | 8 |
| 2006 | 7 | 4 |
| 2007 | 3 | 2 |
| 2008 | 5 | 11 |
| 2009 | 9 | 8 |
| 2010 | 4 | 9 |
| 2011 | 6 | 9 |
| 2012 | 5 | 11 |
| 2013 | 6 | 10 |
| 2014 | 9 | 18 |
| 2015 | 13 | 20 |
| 2016 | 11 | 19 |
| 2017 | 10 | 19 |
| 2018 | 14 | 24 |
| 2019 | 24 | 23 |
| 2020 | 29 | 26 |
| 2021 | 20 | 24 |
| 2022 | 25 | 18 |
| 2023 | 18 | 20 |
| 2024 | 15 | 13 |
| 2025 | 16 | 16 |
| 2026 | 12 | 7 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Apparatus for and method of cutting through or deforming a sidewall of a downhole tubular8 Sep 2026US 12,729,594 B2Kaseum Holdings Limited
- Axial position-controlled operation toolstring and method8 Sep 2026US 12,729,595 B2Archer Oiltools AS
- Downhole tool7 Jul 2026US 12,674,377 B2Odfjell Technology Invest Ltd
- Mechanical release tool for downhole wireline30 Jun 2026US 12,669,026 B2
- Sidewall drilling tool with hydraulically operated anchoring member and drilling member28 Apr 2026US 12,612,835 B2Kaseum Holding Limited
- Improvements in or Relating to Well Abandonment8 Oct 2026US 2026/0308995 A1
- Downhole tool1 Oct 2026US 2026/0298045 A1Welltec A/S
- Apparatus and method for cutting a tubular in an oil or gas well27 Aug 2026US 2026/0251030 A1Kaseum Holdings Limited
- Apparatuses and methods for abandonment of wells having a sensor27 Aug 2026US 2026/0251056 A1NuWave Industries Inc.
- Well abandonment19 Mar 2026US 2026/0078653 A1Callidus Capital B.V.
Most cited
By later US patents
- Procedures and equipment for profiling and jointing of pipes319US 6,457,532 B1Weatherford/Lamb, Inc. · 2002
- Method and apparatus for downhole sealing252US 6,425,444 B1Weatherford/Lamb, Inc. · 2002
- Method and apparatus for drilling and lining a wellbore236US 6,543,552 B1Weatherford/Lamb, Inc. · 2003
- Cutter blades for rotary tubing tools210US 5,242,017 A1993
- Reinforced swelling elastomer seal element on expandable tubular178US 6,834,725 B2Weatherford/Lamb, Inc. · 2004