E21D 11/386
Inflatable sealing means
Official title: {inflatable sealing means}
E21D11/386 (Inflatable sealing means) appears on 3 US grants and 3 published applications in this corpus.
Search patents in E21D- Granted patents
- 3
- Published applications
- 3
- Assignees
- 3
- Inventors
- 18
- Latest grant
- 15 Nov 2022
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1996 | 1 | 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 | 1 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 1 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 1 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 0 |
| 2022 | 1 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Tunnel adaptive lining structure in complex environment and construction method thereof15 Nov 2022US 11,499,427 B2China Institute of Water Resources and Hydropower Research
- Advancement of pipe elements in the ground31 Jul 2012US 8,231,306 B2
- Method of connection6 Feb 1996US 5,489,164 AColebrand Limited
- Tunnel adaptive lining structure in complex environment and construction method thereof21 Apr 2022US 2022/0120183 A1China Institute of Water Resources and Hydropower Research
- Method for constructing a tunnel course, and structural element for use by the method7 May 2015US 2015/0125215 A1Stabinor AS
- Advancement Of Pipe Elements In The Ground6 Dec 2007US 2007/0280786 A1
Most cited
By later US patents