Inventor · disambiguated record

Frowin Derr

Also filed as: DERR FROWIN

2 granted patents·16 citations·filing 1997–1997

57Inventor score

Technology areasG02B H04Q

Files withSIEMENS AG2

Top patents by PatentIndex Score

2 records

0136US5793910AMethod and circuit arrangement for frequency stabilization of a WDM multiplexer/demultiplexerSIEMENS AG·Filed 1997·Granted Aug 11, 1998·11 cites·5 claims
0230US5781335ACircuit arrangement for optical frequency conversionSIEMENS AG·Filed 1997·Granted Jul 14, 1998·5 cites·4 claims

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