F21L 19/006
Special adaptation for protection against draughts
Official title: {Special adaptation for protection against draughts (in lighting devices employing combustion other than lanterns F21V37/02)}
F21L19/006 (Special adaptation for protection against draughts) appears on 3 US grants and 1 published applications in this corpus.
Search patents in F21L- Granted patents
- 3
- Published applications
- 1
- Assignees
- 2
- Inventors
- 4
- Latest grant
- 19 Nov 2019
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| Year | Granted patents | Published applications |
|---|---|---|
| 1982 | 1 | 0 |
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| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
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| 2002 | 0 | 0 |
| 2003 | 1 | 0 |
| 2004 | 0 | 0 |
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| 2014 | 0 | 0 |
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| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 1 |
| 2019 | 1 | 0 |
By publication year. Applications have been published since 2001.
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