E21D 5/10
In the form of tubbing or of rings composed of profile elements
Official title: in the form of tubbing {or of rings composed of profile elements}
E21D5/10 (In the form of tubbing or of rings composed of profile elements) appears on 4 US grants and 6 published applications in this corpus.
Search patents in E21D- Granted patents
- 4
- Published applications
- 6
- Assignees
- 6
- Inventors
- 14
- Latest grant
- 30 Aug 2022
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1995 | 1 | 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 | 1 |
| 2012 | 0 | 1 |
| 2013 | 0 | 0 |
| 2014 | 1 | 1 |
| 2015 | 0 | 0 |
| 2016 | 0 | 1 |
| 2017 | 0 | 1 |
| 2018 | 0 | 0 |
| 2019 | 1 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 0 |
| 2022 | 1 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
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- Mine shaft liner plate system and method5 Aug 2014US 8,795,777 B2Contech Engineered Solutions LLC
- Excavation shield apparatus and method28 Mar 1995US 5,401,122 AGwinnett Enterprises, Limited
- Anti-seismic support method for mine shaft20 Jan 2022US 2022/0018250 A1China Coal Research Institute
- Fastener and method of sealing passage19 Jan 2017US 2017/0016326 A1Relborgn Pty Ltd
- Shaft collar assembly and method25 Feb 2016US 2016/0053552 A1
- Mine shaft liner plate system and method4 Dec 2014US 2014/0356072 A1
- Mine shaft liner plate system and method23 Aug 2012US 2012/0213590 A1Contech Engineered Solutions LLC
Most cited
By later US patents