Inventor · disambiguated record

Douglas D. Castle

Also filed as: CASTLE DOUGLAS D

2 granted patents·13 citations·filing 1991–1991

57Inventor score

Files withDIGITAL BIOMETRICS INC2

Top patents by PatentIndex Score

2 records

0151USD325196SCabinet for optical imaging of fingerprintsDIGITAL BIOMETRICS INC·Filed 1991·Granted Apr 7, 1992·8 cites·1 claims
0241USD346158SCabinet housing for optical imaging of fingerprintsDIGITAL BIOMETRICS INC·Filed 1991·Granted Apr 19, 1994·5 cites·1 claims

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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →