DP

David Pflum

DR Dri-Steem: 2 patents #9 of 15Top 60%
Overall (All Time): #1,358,582 of 4,157,543Top 35%
3
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
11940178 Condensing, ultra-low NOx gas-fired humidifier James M. Lundgreen, Cole K. Farley, Alvin J. Klisch, Daniel W. Celotta 2024-03-26
11421899 Condensing, ultra-low NOx gas-fired humidifier James M. Lundgreen, Cole K. Farley, Alvin J. Klisch, Daniel W. Celotta 2022-08-23
5000255 Fluidized bed heat exchanger 1991-03-19