DD

Duane V. Douglas

CA Carrier: 1 patents #1,349 of 2,507Top 55%
Overall (All Time): #3,222,789 of 4,157,543Top 80%
1
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
8267156 Streamlined orifice of outdoor unit Yu-Qi Wang, Larry D. Burns, Loren D. Hoffman, William Bruce Sutherlin, Frank J. David +2 more 2012-09-18