DN

Douglas L. Neuenfeldt

HE Hoffman Enclosures: 3 patents #29 of 124Top 25%
📍 Anoka, MN: #55 of 225 inventorsTop 25%
🗺 Minnesota: #13,602 of 52,454 inventorsTop 30%
Overall (All Time): #995,423 of 4,157,543Top 25%
5
Patents All Time

Issued Patents All Time

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDate
10512866 Filter housing for filter fan Seng Chang, Jeffrey Thibedeau, William J. Nepsha, Richard Raisanen, Michael Koehler +3 more 2019-12-24
D803365 Air conditioner Richard Raisanen, Michael Koehler, Randal Schroeder, William J. Nepsha, Adam Pawlowski +2 more 2017-11-21
D739928 Air conditioner cover Richard Raisanen, Michael Koehler, Randal Schroeder, William J. Nepsha, Klaus-Peter Bachmann +2 more 2015-09-29
5036677 Air conditioner having improved structure for cooling electronics David E. Thielman 1991-08-06
5035281 Heat exchanger for cooling and method of servicing same Roger A. Peterson 1991-07-30