HB

Helmut Bernhardt

BG Balzers-Pfeiffer Gmbh: 2 patents #2 of 7Top 30%
AG Arthur Pfeiffer Vakummtechnik Wetzlar Gmbh: 1 patents #11 of 31Top 40%
Overall (All Time): #1,289,054 of 4,157,543Top 35%
4
Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
5667363 Magnetically supported friction pump Rene Larsonneur 1997-09-16
5522694 Venting device for magnetically supported vacuum pumps Rene Larsonneur 1996-06-04
5209631 Arrangement for flooding high speed vacuum pumps 1993-05-11
5166566 Magnetic bearings for a high speed rotary vacuum pump Karl-Heinz Bernhardt 1992-11-24