JL

Johannes Liefke

SA Siemens Aktiengesellschaft: 2 patents #6,658 of 22,248Top 30%
📍 Bensheim, DE: #172 of 372 inventorsTop 50%
Overall (All Time): #2,321,654 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4900252 Recognition system for tools insertable into dental treatment instruments Bernd Nickel, Josef Pabst, Otto Fleer 1990-02-13
4308011 Apparatus for supporting dental handpieces 1981-12-29