Inventor · disambiguated record
John C. Keith
Also filed as: KEITH JOHN C · WENNINGER FREDDIE W
9 granted patents·154 citations·filing 1974–1990
89Inventor score
Files withHEWLETT PACKARD CO9
Top patents by PatentIndex Score
9 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
- 0266US5293593AMethod and apparatus for the mapping of physically non-contiguous memory fragments to be linearly addressableHEWLETT PACKARD CO·Filed 1990·Granted Mar 8, 1994·33 cites·20 claims
- 0359US4181966AAdaptable programmed calculator including a percent keyboard operatorHEWLETT PACKARD CO·Filed 1976·Granted Jan 1, 1980·21 cites·4 claims
- 0452US4089059AProgrammable 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
- 0546US4707571AErgonomic digitizer stylusHEWLETT PACKARD CO·Filed 1986·Granted Nov 17, 1987·15 cites·2 claims
- 0646US4697048AGraphics tablet menu locator accommodating differing sizes of paperHEWLETT PACKARD CO·Filed 1986·Granted Sep 29, 1987·11 cites·2 claims
- 0733US4156921AAdaptable programmed calculator including automatic decimal point positioningHEWLETT PACKARD CO·Filed 1976·Granted May 29, 1979·5 cites·4 claims
- 0827US4566072AProgrammable 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
- 0926US4330839AProgrammable 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 →