Inventor · disambiguated record
Ralph E. Zum Bahlen
Also filed as: ZUM BAHLEN RALPH E
3 granted patents·8 citations·filing 1980–1982
60Inventor score
Technology areasB41J
Files withSTENOGRAPH CORP3
Top patents by PatentIndex Score
3 records- 0139US4363558AShorthand machine having electric platen advancementSTENOGRAPH CORP·Filed 1980·Granted Dec 14, 1982·5 cites·19 claims
- 0228US4421427AShorthand machine having electric platen advancementSTENOGRAPH CORP·Filed 1982·Granted Dec 20, 1983·2 cites·6 claims
- 0325US4323316AShorthand machine paper gaugeSTENOGRAPH CORP·Filed 1980·Granted Apr 6, 1982·1 cites·12 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →