Inventor · disambiguated record
Friedrich R. Hertrich
Also filed as: HERTRICH FRIEDRICH R
11 granted patents·441 citations·filing 1974–1988
93Inventor score
Top patents by PatentIndex Score
11 records- 0195US4572460AMeans for pulling tape from a reelDIGITAL EQUIPMENT CORP·Filed 1984·Granted Feb 25, 1986·60 cites·1 claims
- 0294US4874975ABrushless DC motorDIGITAL EQUIPMENT CORP·Filed 1987·Granted Oct 17, 1989·92 cites·9 claims
- 0394US4260914ADifferential linear velocity transducerDIGITAL EQUIPMENT CORP·Filed 1979·Granted Apr 7, 1981·52 cites·2 claims
- 0490US4809110ANarrow contour head assemblyDIGITAL EQUIPMENT CORP·Filed 1987·Granted Feb 28, 1989·45 cites·3 claims
- 0585US4908826AStored data error correction systemDIGITAL EQUIPMENT CORP·Filed 1988·Granted Mar 13, 1990·33 cites·17 claims
- 0685US4390912ATransducer positioning system and data disk thereforDIGITAL EQUIPMENT CORP·Filed 1980·Granted Jun 28, 1983·33 cites·9 claims
- 0783US4662049AMechanism for joining tape leadersDIGITAL EQUIPMENT CORP·Filed 1984·Granted May 5, 1987·25 cites·6 claims
- 0878US4720913AMechanism for joining tape leadersDIGITAL EQUIPMENT CORP·Filed 1986·Granted Jan 26, 1988·34 cites·10 claims
- 0977US4788465AArmature for DC motorDIGITAL EQUIPMENT CORP·Filed 1987·Granted Nov 29, 1988·37 cites·17 claims
- 1076US4208679ATransducer positioning system for rotating disk drive unitsDIGITAL EQUIPMENT CORP·Filed 1978·Granted Jun 17, 1980·18 cites·20 claims
- 1161US3956736ADisc cartridge sector formatting arrangement and record addressing systemJACQUES JAMES O·Filed 1974·Granted May 11, 1976·12 cites·14 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →