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DOUGLAS STEVEN L
US
3 patents
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by PatentIndex Score
US8083519B2
Dec 27, 2011
Burner nozzle
DOUGLAS STEVEN L
9 citations
78
US8211191B2
Jul 3, 2012
Upright gasifier
DOUGLAS STEVEN L
7 citations
76
US8444724B2
May 21, 2013
Upright gasifier
DOUGLAS STEVEN L
2 citations
54