RK

Roland Koeppel

SA Siemens Aktiengesellschaft: 3 patents #4,667 of 22,248Top 25%
Overall (All Time): #1,641,524 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
5838763 X-ray tube with a plain bearing Bernhard Hiller, Edwin Gemmel 1998-11-17
5654999 Liquid metal plain bearing Edwin Gemmel, Bernhard Hiller, Wolfgang Kuehnel 1997-08-05
5622435 Plain bearing having a bearing gap filled with liquid metal Bernhard Hiller, Edwin Gemmel, Wolfgang Kuehnel 1997-04-22