Inventor · disambiguated record
Johannes K. Jantzen
Also filed as: JANTZEN JOHANNES K · JANTZEN JR JOHANNES KRISTOFFER
3 granted patents·21 citations·filing 1975–1978
66Inventor score
Top patents by PatentIndex Score
3 records- 0169US3974582APlaten for strip-up microficheADDRESSOGRAPH MULTIGRAPH·Filed 1975·Granted Aug 17, 1976·12 cites·3 claims
- 0261US4250644AHand held microfilm readerTOPEX INC·Filed 1978·Granted Feb 17, 1981·8 cites·5 claims
- 0325US4010478APurging system for diazotype film developerADDRESSOGRAPH MULTIGRAPH·Filed 1975·Granted Mar 1, 1977·1 cites·6 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →