E21D 11/183
Supporting means for arch members, not provided for in e21d11/22
Official title: {Supporting means for arch members, not provided for in E21D11/22}
E21D11/183 (Supporting means for arch members, not provided for in e21d11/22) 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
- 37
- Latest grant
- 21 May 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 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 | 0 |
| 2013 | 0 | 1 |
| 2014 | 0 | 0 |
| 2015 | 1 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 1 |
| 2019 | 1 | 0 |
| 2020 | 0 | 1 |
| 2021 | 1 | 1 |
| 2022 | 1 | 0 |
| 2023 | 0 | 0 |
| 2024 | 1 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Inflatable folding tunnel reinforcement structure and construction method thereof21 May 2024US 11,988,093 B2Hangzhou City University
- Method of treating tunnel collapse with roof-contacted shield support15 Feb 2022US 11,248,464 B2China Communications Construction Co., Ltd.
- Reinforcement system for the concrete lining of the inner shell of a tunnel construction23 Nov 2021US 11,180,994 B2Bag Bauartikel GmbH
- High-strength confined concrete support system for underground tunnel17 Sep 2019US 10,415,387 B2Shandong Tianqin Mining Machinery Equipment Co. Ltd.
- Underground mining rib support system and method29 Sep 2015US 9,145,769 B2
- Inflatable folding tunnel reinforcement structure and construction method thereof7 Mar 2024US 2024/0076984 A1Hangzhou City University
- Method of treating tunnel collapse with roof-contacted shield support18 Nov 2021US 2021/0355828 A1China Communications Construction Co., Ltd.
- Reinforcement system for the concrete lining of the inner shell of a tunnel construction10 Sep 2020US 2020/0284147 A1Bag Bauartikel GmbH
- High-strength confined concrete support system for underground tunnel11 Oct 2018US 2018/0291736 A1Shandong Tianqin Mining Machinery Equipment Co. Ltd.
- Underground mining rib support system and method17 Jan 2013US 2013/0017022 A1
Most cited
By later US patents