RP

Richard Perrin

Overall (All Time): #2,134,860 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
7530891 Thermally-actuated cartridge and fire damper 2009-05-12
6991536 Air flow controller and fire damper in an air flow duct 2006-01-31