E21D 1/08
While moving the lining downwards
Official title: while moving the lining downwards {(lowering the lining into a ready shaft E21D5/01; sheet piles E02D5/02)}
E21D1/08 (While moving the lining downwards) appears on 6 US grants and 5 published applications in this corpus.
Search patents in E21D- Granted patents
- 6
- Published applications
- 5
- Assignees
- 10
- Inventors
- 28
- Latest grant
- 30 Jun 2020
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 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 | 0 | 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 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 2 |
| 2013 | 0 | 0 |
| 2014 | 2 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 1 |
| 2017 | 0 | 0 |
| 2018 | 0 | 1 |
| 2019 | 0 | 0 |
| 2020 | 1 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 0 |
| 2024 | 0 | 0 |
| 2025 | 0 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Shaft enlargement arrangement for a boring system30 Jun 2020US 10,697,246 B2Master Drilling South Africa (Pty) Ltd.
- Underground mining9 Dec 2014US 8,905,486 B2Technological Resources Pty. Limited
- Method for erecting an underground construction1 Jul 2014US 8,763,344 B2Herreknecht AG
- Process and device for sinking wells16 Dec 1986US 4,629,010 A
- Method and apparatus for sinking shafts14 Oct 1980US 4,227,583 AWirth Maschinen-und Bohrgerate-Fabrik GmbH
- Top-down sequential-building construction method for deep and large vertical shaft cavern group25 Dec 2025US 2025/0389189 A1China Tiesiju Civil Engineering Group Co., Ltd.
- Shaft enlargement arrangement for a boring system11 Jan 2018US 2018/0010392 A1Masters Sinkers (PTY) Ltd.
- Method for lining boreholes for deep bores and device for carrying out said method25 Feb 2016US 2016/0053571 A1Schwindt Hydraulik GmbH
- Underground mining9 Aug 2012US 2012/0200139 A1Technological Resources Pty. Limited
- Method for erecting an underground construction28 Jun 2012US 2012/0163919 A1Herreknecht AG
Most cited
By later US patents