E02D 29/055
Further excavation of the cross-section proceeding underneath an already installed part of
Official title: further excavation of the cross-section proceeding underneath an already installed part of the structure, e.g. the roof of a tunnel
E02D29/055 (Further excavation of the cross-section proceeding underneath an already installed part of) appears on 13 US grants and 19 published applications in this corpus.
Search patents in E02D- Granted patents
- 13
- Published applications
- 19
- Assignees
- 4
- Inventors
- 19
- Latest grant
- 30 Jan 2024
Filings by year
| Year | Granted patents | Published applications |
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| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
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| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 1 | 1 |
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| 2008 | 0 | 0 |
| 2009 | 0 | 1 |
| 2010 | 1 | 1 |
| 2011 | 0 | 0 |
| 2012 | 1 | 0 |
| 2013 | 0 | 3 |
| 2014 | 1 | 2 |
| 2015 | 1 | 2 |
| 2016 | 2 | 1 |
| 2017 | 1 | 0 |
| 2018 | 1 | 1 |
| 2019 | 0 | 1 |
| 2020 | 1 | 2 |
| 2021 | 1 | 1 |
| 2022 | 0 | 2 |
| 2023 | 0 | 0 |
| 2024 | 1 | 1 |
By publication year. Applications have been published since 2001.
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Most cited
By later US patents
- Methods for constructing underground structures11US 7,722,293 B22010
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- Method of producing a subterranean structure4US 4,648,743 A1987