Inventor · disambiguated record
Douglas M. Clifford
Also filed as: CLIFFORD DOUGLAS M · MORRIS DONALD E
6 granted patents·95 citations·filing 1974–1982
83Inventor score
Technology areasG06F
Files withHEWLETT PACKARD CO6
Top patents by PatentIndex Score
6 records- 0182US3971925AAdaptable programmed calculator having provision for plug-in keyboard and memory modulesHEWLETT PACKARD CO·Filed 1974·Granted Jul 27, 1976·47 cites·42 claims
- 0259US4181966AAdaptable programmed calculator including a percent keyboard operatorHEWLETT PACKARD CO·Filed 1976·Granted Jan 1, 1980·21 cites·4 claims
- 0352US4089059AProgrammable calculator employing a read-write memory having a movable boundary between program and data storage sections thereofHEWLETT PACKARD CO·Filed 1975·Granted May 9, 1978·17 cites·6 claims
- 0433US4156921AAdaptable programmed calculator including automatic decimal point positioningHEWLETT PACKARD CO·Filed 1976·Granted May 29, 1979·5 cites·4 claims
- 0527US4566072AProgrammable calculator including means for digitizing the position of an X-Y plotter penHEWLETT PACKARD CO·Filed 1982·Granted Jan 21, 1986·3 cites·4 claims
- 0626US4330839AProgrammable calculator including means for automatically processing imformation stored on a magnetic record memberHEWLETT PACKARD CO·Filed 1979·Granted May 18, 1982·2 cites·3 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →