E21B 7/143
Underwater
Official title: {underwater}
E21B7/143 (Underwater) appears on 10 US grants and 4 published applications in this corpus.
Search patents in E21B- Granted patents
- 10
- Published applications
- 4
- Assignees
- 6
- Inventors
- 18
- Latest grant
- 4 Oct 2022
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 2 | 0 |
| 1984 | 2 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 1 |
| 2004 | 1 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 1 |
| 2018 | 0 | 0 |
| 2019 | 0 | 1 |
| 2020 | 0 | 0 |
| 2021 | 1 | 1 |
| 2022 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Resource collection system4 Oct 2022US 11,459,858 B2
- Moving-riser method and system for harvesting natural gas from seabed hydrates26 Jan 2021US 10,900,331 B2University of Louisiana at Lafayette
- Hydrothermal drilling method and system1 Jun 2004US 6,742,603 B2ExxonMobil Research and Engineering Company
- Igniter for thermal lance10 Apr 1990US 4,915,618 ANorabel AB
- Underwater cutting tool16 Oct 1984US 4,477,060 A
- Resource collection system11 Nov 2021US 2021/0348482 A1
- Moving-riser method and system for harvesting natural gas from seabed hydrates11 Jul 2019US 2019/0211654 A1University of Louisiana at Lafayette
- Device and method for crushing rock by means of pulsed electric energy28 Dec 2017US 2017/0370155 A1IHC Holland IE B.V.
- Hydrothermal drilling method and system3 Jul 2003US 2003/0121701 A1ExxonMobil Research and Engineering Company
Most cited
By later US patents
- Underwater cutting rod47US 4,182,947 A1980
- Underwater cutting rod16US 4,069,407 A1978
- Hydrothermal drilling method and system13US 6,742,603 B2ExxonMobil Research and Engineering Company · 2004
- Exothermic cutting electrode9US 4,391,209 AArcair Company · 1983
- Exothermic cutting electrode9US 4,437,649 AArcair Company · 1984