E21B 11/02
Boring rams
E21B11/02 (Boring rams) appears on 14 US grants and 8 published applications in this corpus.
Search patents in E21B- Granted patents
- 14
- Published applications
- 8
- Assignees
- 9
- Inventors
- 16
- Latest grant
- 27 Sep 2022
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 1 |
| 2008 | 1 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 1 |
| 2012 | 1 | 0 |
| 2013 | 0 | 1 |
| 2014 | 1 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 1 |
| 2017 | 1 | 2 |
| 2018 | 0 | 0 |
| 2019 | 2 | 1 |
| 2020 | 1 | 0 |
| 2021 | 1 | 0 |
| 2022 | 1 | 0 |
| 2023 | 0 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Open path horizontal pipe rammer for variable pipe diameter27 Sep 2022US 11,454,066 B1Roddie, Inc.
- Device for clamping an element, carriage for a ground drilling device, ground drilling device, method for clamping an element and method for the manufacture of a device for clamping an element16 Nov 2021US 11,174,687 B2TRACTO-TECHNIK GmbH & Co. KG
- Ram accelerator system with baffles30 Jun 2020US 10,697,242 B2Hypersciences, Inc.
- Mobile offshore drilling unit, a method of using such a unit and a system comprising such a unit22 Oct 2019US 10,450,802 B2Maersk Drilling A/S
- Mobile offshore drilling unit, a method of using such a unit and a system comprising such a unit12 Mar 2019US 10,227,824 B2Maersk Drilling A/S
- Cone penetrometer testing probe with integrated hammer blow module28 Dec 2023US 2023/0417110 A1Fnv IP B.V.
- Mobile offshore drilling unit, a method of using such a unit and a system comprising such a unit6 Jun 2019US 2019/0169936 A1Maersk Drilling A/S
- Device for clamping an element, carriage for a ground drilling device, ground drilling device, method for clamping an element and method for the manufacture of a device for clamping an element12 Oct 2017US 2017/0292335 A1TRACTO-TECHNIK GmbH & Co. KG
- A mobile offshore drilling unit, a method of using such a unit and a system comprising such a unit7 Sep 2017US 2017/0254148 A1Maersk Drilling A/S
- Ram accelerator system with baffles8 Dec 2016US 2016/0356087 A1Hypersciences, Inc.
Most cited
By later US patents