E21D 15/15
Means counteracting entry of dirt
Official title: Means counteracting entry of dirt; Built-in cleaning devices
E21D15/15 (Means counteracting entry of dirt) appears on 2 US grants and 2 published applications in this corpus.
Search patents in E21D- Granted patents
- 2
- Published applications
- 2
- Assignees
- 2
- Inventors
- 6
- Latest grant
- 20 Aug 2019
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| Year | Granted patents | Published applications |
|---|---|---|
| 2002 | 0 | 1 |
| 2003 | 1 | 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 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 1 |
| 2018 | 0 | 0 |
| 2019 | 1 | 0 |
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