Roy Holmberg

AF Aktiebolaget Svenska Flaktfabriken: 2 patents #1 of 9Top 15%

FL Flakt: 1 patents #13 of 43Top 35%

📍 Jönköping, SE: #43 of 199 inventorsTop 25%

Overall (All Time): #1,670,472 of 4,157,543Top 45%

Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #	Title	Co-Inventors	Date
D300771	Plate heat exchanger	—	1989-04-18
D254506	Corrugated metal sheet contact body for humidifiers	—	1980-03-18
D254207	Corrugated metal sheet contact body for humidifiers	—	1980-02-12