Inventor · disambiguated record
Karl-Heinz Spahn
Also filed as: SPAHN KARL-HEINZ
4 granted patents·231 citations·filing 1989–1993
82Inventor score
Files withWINKHAUS FA AUGUST4
Top patents by PatentIndex Score
4 records- 0187US5311757AFlat key with circuit chipWINKHAUS FA AUGUST·Filed 1993·Granted May 17, 1994·67 cites·18 claims
- 0284US5469727AElectronic lock cylinderWINKHAUS FA AUGUST·Filed 1993·Granted Nov 28, 1995·64 cites·11 claims
- 0383US5373718AElectronic lock cylinder connectable by a plug connectorWINKHAUS FA AUGUST·Filed 1993·Granted Dec 20, 1994·66 cites·22 claims
- 0465US5044184ALockWINKHAUS FA AUGUST·Filed 1989·Granted Sep 3, 1991·34 cites·19 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →