E21B 49/06
Using side-wall drilling tools pressing or scrapers
Official title: using side-wall drilling tools {pressing} or scrapers
E21B49/06 (Using side-wall drilling tools pressing or scrapers) appears on 206 US grants and 164 published applications in this corpus.
Search patents in E21B- Granted patents
- 206
- Published applications
- 164
- Assignees
- 62
- Inventors
- 453
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 3 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 4 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 3 | 0 |
| 1993 | 3 | 0 |
| 1994 | 2 | 0 |
| 1995 | 4 | 0 |
| 1996 | 2 | 0 |
| 1997 | 4 | 0 |
| 1998 | 6 | 0 |
| 1999 | 4 | 0 |
| 2000 | 6 | 0 |
| 2001 | 5 | 0 |
| 2002 | 3 | 8 |
| 2003 | 4 | 1 |
| 2004 | 3 | 3 |
| 2005 | 3 | 6 |
| 2006 | 3 | 6 |
| 2007 | 4 | 4 |
| 2008 | 4 | 4 |
| 2009 | 4 | 5 |
| 2010 | 5 | 4 |
| 2011 | 4 | 9 |
| 2012 | 5 | 6 |
| 2013 | 7 | 11 |
| 2014 | 12 | 14 |
| 2015 | 4 | 2 |
| 2016 | 10 | 8 |
| 2017 | 9 | 10 |
| 2018 | 8 | 16 |
| 2019 | 14 | 5 |
| 2020 | 6 | 5 |
| 2021 | 6 | 7 |
| 2022 | 6 | 10 |
| 2023 | 11 | 4 |
| 2024 | 9 | 8 |
| 2025 | 6 | 5 |
| 2026 | 3 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Coring tools having coring shafts with associated internal static sleeves29 Sep 2026US 12,747,664 B2Schlumberger Technology Corporation
- Rock sample extraction device5 May 2026US 12,618,751 B2Institute of Geology and Geophysics, Chinese Academy of Sciences
- Downhole rock mechanics characterisation tool, assembly and method20 Jan 2026US 12,529,309 B2ENI S. p. A.
- Automated source rock net thickness prediction system and method4 Nov 2025US 12,461,085 B2Saudi Arabian Oil Company
- Coring tools having coring shafts with associated internal static sleeves14 Oct 2025US 12,442,293 B2Schlumberger Technology Corporation
- Method for extrapolating the representativeness of the classes of the data of oil well wall rock lateral samples30 Jul 2026US 2026/0218609 A1Petroleo Brasileiro S.A. - Petrobras
- Sidewall Tubular Cleaner and Sampling Tool9 Jul 2026US 2026/0193983 A1Saudi Arabian Oil Company
- Coring tools having coring shafts with associated internal static sleeves5 Feb 2026US 2026/0036046 A1Schlumberger Technology Corporation
- Method and systems for alignment of rock samples18 Dec 2025US 2025/0383303 A1Saudi Arabian Oil Company
- Sidewall coring tools having active circulation features16 Oct 2025US 2025/0320816 A1Schlumberger Technology Corporation
Most cited
By later US patents
- Wellbore milling and drilling190US 5,887,655 AWeatherford/Lamb, Inc. · 1999
- Wellbore milling-- drilling166US 5,887,668 AWeatherford/Lamb, Inc. · 1999
- Modified formation testing apparatus and method154US 6,157,893 ABaker Hughes Incorporated · 2000
- Modified formation testing apparatus with borehole grippers and method of formation testing110US 6,581,455 B1Baker Hughes Incorporated · 2003
- Wellbore single trip milling105US 5,826,651 AWeatherford/Lamb, Inc. · 1998