E21D 11/003
Linings or provisions thereon, specially adapted for traffic tunnels
Official title: {Linings or provisions thereon, specially adapted for traffic tunnels, e.g. with built-in cleaning devices (E21D11/38 takes precedence)}
E21D11/003 (Linings or provisions thereon, specially adapted for traffic tunnels) appears on 12 US grants and 16 published applications in this corpus.
Search patents in E21D- Granted patents
- 12
- Published applications
- 16
- Assignees
- 20
- Inventors
- 68
- Latest grant
- 18 Mar 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 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 | 1 | 0 |
| 1997 | 1 | 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 | 0 |
| 2014 | 0 | 2 |
| 2015 | 1 | 3 |
| 2016 | 0 | 2 |
| 2017 | 1 | 1 |
| 2018 | 2 | 1 |
| 2019 | 1 | 2 |
| 2020 | 0 | 0 |
| 2021 | 1 | 1 |
| 2022 | 0 | 0 |
| 2023 | 1 | 0 |
| 2024 | 1 | 2 |
| 2025 | 1 | 1 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
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Most cited
By later US patents
- Apparatus for impregnating a tube33US 4,182,262 AUnderground Surveys Corporation · 1980
- Conduit segment casting mold and method of forming a conduit segment3US 10,913,178 B2Electricwaze LLC · 2021
- Tunnel interior construction3US 5,556,676 ANisshin Chemical Industry Co., Ltd. · 1996
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