E21B 25/06
The core receiver having a flexible liner or inflatable retaining means
Official title: the core receiver having a flexible liner or inflatable retaining means
E21B25/06 (The core receiver having a flexible liner or inflatable retaining means) appears on 50 US grants and 27 published applications in this corpus.
Search patents in E21B- Granted patents
- 50
- Published applications
- 27
- Assignees
- 31
- Inventors
- 99
- Latest grant
- 9 Apr 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 2 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 3 | 0 |
| 1986 | 4 | 0 |
| 1987 | 2 | 0 |
| 1988 | 3 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 2 | 0 |
| 2001 | 0 | 0 |
| 2002 | 2 | 0 |
| 2003 | 0 | 2 |
| 2004 | 2 | 1 |
| 2005 | 0 | 2 |
| 2006 | 2 | 2 |
| 2007 | 2 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 1 |
| 2013 | 0 | 1 |
| 2014 | 1 | 2 |
| 2015 | 1 | 0 |
| 2016 | 1 | 4 |
| 2017 | 1 | 2 |
| 2018 | 3 | 1 |
| 2019 | 2 | 1 |
| 2020 | 4 | 2 |
| 2021 | 1 | 2 |
| 2022 | 1 | 2 |
| 2023 | 1 | 0 |
| 2024 | 1 | 1 |
| 2025 | 0 | 0 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Suction-activated core catcher and related methods9 Apr 2024US 11,952,851 B2Benthic USA LLC
- Drilling mechanism of coring drilling rig10 Oct 2023US 11,781,382 B2Shenzhen University
- Systems and methods for core flooding27 Sep 2022US 11,454,077 B2Saudi Arabian Oil Company
- Measuring formation porosity and permeability18 May 2021US 11,008,823 B2Baker Hughes, A Ge Company, LLC
- Deep rock in-situ active thermal-insulation coring device and thermal-insulation coring method thereof18 Aug 2020US 10,745,989 B2Shenzhen University
- Coring assembly for extraterrestrial drilling and preparation method thereof4 Jun 2026US 2026/0153007 A1Harbin Institute of Technology
- Systems and methods for core flooding24 Oct 2024US 2024/0352817 A1Saudi Arabian Oil Company
- Drilling mechanism of coring drilling rig7 Jul 2022US 2022/0213739 A1Shenzhen University
- Systems and methods for core flooding24 Mar 2022US 2022/0090460 A1Saudi Arabian Oil Company
- Systems and methods for core flooding9 Dec 2021US 2021/0381328 A1Saudi Arabian Oil Company
Most cited
By later US patents
- Coring device with an improved core sleeve and anti-gripping collar with a collective core catcher107US 4,566,545 ANorton Christensen, Inc. · 1986
- Rotary sidewall sponge coring apparatus33US 5,439,065 AWestern Atlas International, Inc. · 1995
- Method and apparatus for obtaining saturation data from subterranean formations23US 4,312,414 ADiamond Oil Well Drilling Company · 1982
- Apparatus for providing a packaged core22US 3,986,555 ADresser Industries, Inc. · 1976
- Earth drilling device for extracting earth samples20US 4,336,849 A1982