FD

Frowin Derr

SA Siemens Aktiengesellschaft: 2 patents #6,658 of 22,248Top 30%
📍 Ulm, DE: #388 of 1,004 inventorsTop 40%
Overall (All Time): #2,262,384 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5793910 Method and circuit arrangement for frequency stabilization of a WDM multiplexer/demultiplexer — 1998-08-11
5781335 Circuit arrangement for optical frequency conversion — 1998-07-14