E03B 3/10
By means of pit wells
Official title: by means of pit wells
E03B3/10 (By means of pit wells) appears on 20 US grants and 14 published applications in this corpus.
Search patents in E03B- Granted patents
- 20
- Published applications
- 14
- Assignees
- 7
- Inventors
- 29
- Latest grant
- 21 May 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 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 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 2 | 0 |
| 2003 | 1 | 2 |
| 2004 | 0 | 1 |
| 2005 | 0 | 0 |
| 2006 | 1 | 0 |
| 2007 | 0 | 1 |
| 2008 | 0 | 0 |
| 2009 | 0 | 1 |
| 2010 | 1 | 1 |
| 2011 | 1 | 0 |
| 2012 | 1 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 1 |
| 2018 | 2 | 2 |
| 2019 | 1 | 0 |
| 2020 | 2 | 3 |
| 2021 | 2 | 2 |
| 2022 | 0 | 0 |
| 2023 | 1 | 0 |
| 2024 | 1 | 0 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Non-powered seawater pumping system for reducing seawater intrusion, and apparatus and method for optimal design of well in the same system21 May 2024US 11,987,962 B2Dong-A University Research Foundation for Industry-Academy Cooperation
- Non-powered seawater pumping system for reducing seawater intrusion, and apparatus and method for optimal design of well in the same system20 Jun 2023US 11,680,390 B2Dong-A University Research Foundation for Industry-Academy Cooperation
- Structure for an aquatic space and method for conserving large bodies of water20 Apr 2021US 10,982,400 B2
- Prefabricated former for constructing underground chamber9 Mar 2021US 10,941,537 B2Dutypoint Limited
- Non-powered seawater pumping system for reducing seawater intrusion, and apparatus and method for optimal design of well in the same system27 Oct 2020US 10,815,648 B2Dong-A University Research Foundation for Industry-Academy Corporation
- Non-powered seawater pumping system for reducing seawater intrusion, and apparatus and method for optimal design of well in the same system7 Jan 2021US 2021/0002872 A1Dong-A University Research Foundation for Industry-Academy Cooperation
- Non-powered seawater pumping system for reducing seawater intrusion, and apparatus and method for optimal design of well in the same system7 Jan 2021US 2021/0002873 A1Dong-A University Research Foundation for Industry-Academy Cooperation
- Structure for an aquatic space and method for conserving large bodies of water27 Feb 2020US 2020/0063388 A1
- Prefabricated former for constructing underground chamber13 Feb 2020US 2020/0048857 A1Dutypoint Limited
- Non-powered seawater pumping system for reducing seawater intrusion, and apparatus and method for optimal design of well in the same system23 Jan 2020US 2020/0024834 A1Dong-A University Research Foundation for Industry-Academy Cooperation
Most cited
By later US patents
- Internally reinforced extruded plastic pipe33US 4,650,367 A1987
- Internally reinforced extruded plastic pipe24US 4,596,491 A1986
- Well drilling apparatus20US 4,108,255 A1978
- Wide area water collection type underground water tank20US 6,382,237 B1Totetu Mfg. Co. Ltd. · 2002
- In-well baffle apparatus and method14US 7,757,757 B1The United States of America as represented by the Secretary of the Interior · 2010