FK

Frederick Kieferndorf

AA Abb Schweiz Ag: 3 patents #607 of 3,274Top 20%
AR Abb Research: 2 patents #335 of 1,276Top 30%
HE Hitachi Energy: 1 patents #135 of 458Top 30%
IR International Rectifier: 1 patents #252 of 432Top 60%
📍 Baden, CH: #69 of 498 inventorsTop 15%
Overall (All Time): #683,219 of 4,157,543Top 20%
7
Patents All Time

Issued Patents All Time

Showing 1–7 of 7 patents

Patent #TitleCo-InventorsDate
12323073 Method for operating a power electronic converter device with floating cells Ioannis Tsoumas, Tobias Geyer, Mario Schweizer, Eduardo Rohr, Wim Van-Der-Merwe +2 more 2025-06-03
12165819 Control scheme for the operation of an electric motor actuator for a medium to high voltage circuit breaker Joerg Lehmann, Stefano Mattei 2024-12-10
11979094 Method for operating a power electronic converter device with floating cells Ralph Burkart, Ioannis Tsoumas, Tobias Geyer 2024-05-07
10374431 Power converter system for renewable energy sources Francisco Canales, Drazen Dujic 2019-08-06
8766570 Method for controlling a converter Tobias Geyer, Georgios Papafotiou, Nikolaos Oikonomou 2014-07-01
8737103 Method and controller for controlling an electrical converter configured for generating an AC current for at least two phases Georgios Papafotiou, Nikolaos Oikonomou, Tobias Geyer 2014-05-27
7518397 Chip with in-circuit programability 2009-04-14