HD

Hermann Dorr

SA Siemens Aktiengesellschaft: 5 patents #2,766 of 22,248Top 15%
KA Krupp Polysius Ag: 1 patents #77 of 180Top 45%
Overall (All Time): #889,575 of 4,157,543Top 25%
6
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
5529021 Forced once-through steam generator Axel Butterlin, Joachim Franke 1996-06-25
5152316 Servo drive for safety and regulating valves 1992-10-06
5152317 Reducing station having a safety function in a negative direction of action 1992-10-06
5113902 Control valve for media in vapor or liquid form 1992-05-19
5113903 Steam converting valve with spindle actuation 1992-05-19
4563271 Percussion jig Norbert Schroder, Gunter Milewski, Manfred Neusser, Armin Supp, Heinz Rasch +3 more 1986-01-07