E21D 9/0664
With means for applying a coating layer to the front face
Official title: {with means for applying a coating layer to the front face, e.g. by spraying}
E21D9/0664 (With means for applying a coating layer to the front face) appears on 5 US grants and 3 published applications in this corpus.
Search patents in E21D- Granted patents
- 5
- Published applications
- 3
- Assignees
- 3
- Inventors
- 10
- Latest grant
- 7 May 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 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 | 1 |
| 2004 | 0 | 0 |
| 2005 | 1 | 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 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 1 |
| 2017 | 1 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 1 |
| 2024 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Mechanical tunneling apparatus and process for tunnel in quicksand stratum7 May 2024US 11,976,558 B2Shandong University
- Barrier forming apparatus15 Aug 2017US 9,732,612 B2
- Treatment of rock surfaces22 Nov 2005US 6,966,610 B2Minova International Limited
- Method for reducing compressed air losses when driving underground cavities supported by compressed air18 Nov 1986US 4,623,198 AEd. Zublin Aktiengesellschaft
- Driving shield18 Jan 1983US 4,368,924 AEd. Zublin Aktiengesellschaft
Most cited
By later US patents