BD

Birgit Hoffman, deceased

SA Siemens Aktiengesellschaft: 1 patents #10,653 of 22,248Top 50%
IBM: 1 patents #44,794 of 70,183Top 65%
Overall (All Time): #3,725,360 of 4,157,543Top 90%
1
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
5670018 Isotropic silicon etch process that is highly selective to tungsten Elke Eckstein, Edward W. Kiewra, Waldemar Walter Kocon, Marc Jay Weiss 1997-09-23