SB

Seigfried Birkle

SA Siemens Aktiengesellschaft: 1 patents #10,653 of 22,248Top 50%
📍 Höchstadt an der Aisch, DE: #51 of 89 inventorsTop 60%
Overall (All Time): #3,810,046 of 4,157,543Top 95%
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Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5360693 Positive o-quinone diazide photoresist containing base copolymer utilizing monomer having anhydride function and further monomer that increases etch resistance Michael Sebald, Recai Sezi, Rainer Leuschner, Hellmut Ahhe 1994-11-01