Inventor · disambiguated record
Ralph J. Oldenkamp
Also filed as: OLDENKAMP RALPH J
3 granted patents·1 pending application·161 citations·filing 1980–2001
76Inventor score
Top patents by PatentIndex Score
4 records- 0188US4422163APower down circuit for data protection in a microprocessor-based systemVEND A COPY INC·Filed 1981·Granted Dec 20, 1983·98 cites·4 claims
- 0271US4322613AMethod for tamper-proofing magnetic stripe card readerVENDACOPY INC·Filed 1980·Granted Mar 30, 1982·37 cites·4 claims
- 0365US4300042AMagnetic stripe card authorVENDACOPY INC·Filed 1980·Granted Nov 10, 1981·26 cites·7 claims
- 0431US2003110967A1Ink cartridge for ink level management apparatusFiled 2001·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →