Inventor · disambiguated record
Richard M. Spangler
Also filed as: SPANGLER RICHARD M · WATSON R
6 granted patents·68 citations·filing 1974–1982
81Inventor score
Technology areasG06F
Files withHEWLETT PACKARD CO6
Top patents by PatentIndex Score
6 records- 0173US4012725AProgrammable calculatorHEWLETT PACKARD CO·Filed 1974·Granted Mar 15, 1977·35 cites·41 claims
- 0247US4126898AProgrammable calculator including terminal control meansHEWLETT PACKARD CO·Filed 1977·Granted Nov 21, 1978·13 cites·11 claims
- 0336US4322816AProgrammable calculator having structure for controlling an x-y plotterHEWLETT PACKARD CO·Filed 1980·Granted Mar 30, 1982·9 cites·8 claims
- 0434US4366553AElectronic computing apparatus employing basic languageHEWLETT PACKARD CO·Filed 1980·Granted Dec 28, 1982·7 cites·9 claims
- 0531US4127897AProgrammable calculator having extended input/output capabilityHEWLETT PACKARD CO·Filed 1977·Granted Nov 28, 1978·4 cites·5 claims
- 0627US4546448AProgrammable calculator including program variable initialization means and definition means arrayHEWLETT PACKARD CO·Filed 1982·Granted Oct 8, 1985·0 cites·3 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →