RB

Rolf Birkmann

SA Siemens Aktiengesellschaft: 2 patents #6,658 of 22,248Top 30%
Overall (All Time): #2,324,942 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
4940855 Hermetically tight glass-metal housing for semiconductor components and method for producing same Guenther Waitl, Ewald Schmidt 1990-07-10
4875750 Optoelectronic coupling element and method for its manufacture Werner Spaeth, Guenther Waitl, Werner Kuhlmann, Hans-Ludwig Althaus, Waltraud Klos +1 more 1989-10-24