E21B 25/18
The core receiver being specially adapted for operation under water
Official title: the core receiver being specially adapted for operation under water
E21B25/18 (The core receiver being specially adapted for operation under water) appears on 47 US grants and 47 published applications in this corpus.
Search patents in E21B- Granted patents
- 47
- Published applications
- 47
- Assignees
- 47
- Inventors
- 184
- Latest grant
- 10 Sep 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 2 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 2 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 2 | 0 |
| 2003 | 0 | 2 |
| 2004 | 1 | 1 |
| 2005 | 1 | 0 |
| 2006 | 1 | 1 |
| 2007 | 0 | 0 |
| 2008 | 0 | 1 |
| 2009 | 0 | 3 |
| 2010 | 0 | 1 |
| 2011 | 2 | 1 |
| 2012 | 1 | 1 |
| 2013 | 0 | 2 |
| 2014 | 0 | 1 |
| 2015 | 0 | 5 |
| 2016 | 4 | 2 |
| 2017 | 2 | 1 |
| 2018 | 1 | 0 |
| 2019 | 0 | 5 |
| 2020 | 5 | 7 |
| 2021 | 5 | 5 |
| 2022 | 1 | 3 |
| 2023 | 2 | 1 |
| 2024 | 6 | 2 |
| 2025 | 0 | 0 |
| 2026 | 0 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Transfer and online detection system for deep-sea sediment samples and application method thereof2 Jul 2024US 12,025,604 B2Dalian University of Technology
- Underwater drilling device and method for procuring drill cores of a bed of a body of water14 May 2024US 11,982,145 B2BAUER Maschinen GmbH
- Method for offshore dual-drive core drilling with three layers of casings under surge compensation16 Apr 2024US 11,959,346 B2Guangzhou Marine Geological Survey
- Suction-activated core catcher and related methods9 Apr 2024US 11,952,851 B2Benthic USA LLC
- System and method of manually operated drilling on an extraterrestrial surface7 May 2026US 2026/0125954 A1Honeybee Robotics, LLC
- Esturine wetland sediment column sampling apparatus and method7 May 2026US 2026/0125957 A1Institute of Ecological Conservation and Restoration, Chinese Academy of Forestry
- Sock for a floating vessel13 Jun 2024US 2024/0191603 A1Zentech, Inc.
- Method for offshore dual-drive core drilling with three layers of casings under surge compensation22 Feb 2024US 2024/0060378 A1Guangzhou Marine Geological Survey
- Multi-point drilling and sampling device applied to seafloor tracked vehicle14 Dec 2023US 2023/0399910 A1Hunan University of Science and Technology
Most cited
By later US patents
- Apparatus and method for obtaining a core at in situ pressure42US 4,317,490 AThe Texas A&M University System · 1982
- Methods for seabed piston coring32US 6,394,192 B1Benthic Geotech Pty Ltd · 2002
- Remotely operable underwater drilling system and drilling method12US 9,322,220 B2Marl Technologies Inc. · 2016
- Device for taking bottom soil samples from deep water basins11US 4,116,069 A1978
- Pressure differential seafloor corer-carrier9US 4,234,046 A1980