Inventor · disambiguated record
Lothar R. Zifferer
Also filed as: ZIFFERER LOTHAR R
6 granted patents·313 citations·filing 1979–1992
87Inventor score
Top patents by PatentIndex Score
6 records- 0196US5311661AMethod of pointing and corrugating heat exchange tubingPACKLESS METAL HOSE INC·Filed 1992·Granted May 17, 1994·107 cites·10 claims
- 0290US5251693ATube-in-shell heat exchanger with linearly corrugated tubingZIFFERER LOTHAR R·Filed 1992·Granted Oct 12, 1993·92 cites·29 claims
- 0387US4514997ATube corrugating diePACKLESS METAL HOSE INC·Filed 1983·Granted May 7, 1985·37 cites·16 claims
- 0479US4377083ATube corrugating apparatus and methodSHEPHERD DALE H·Filed 1979·Granted Mar 22, 1983·32 cites·12 claims
- 0570US4768495AHeating apparatus and methodPACKLESS METAL HOSE INC·Filed 1986·Granted Sep 6, 1988·27 cites·46 claims
- 0659US4846148AHeating apparatus and methodPACKLESS METAL HOSE INC·Filed 1988·Granted Jul 11, 1989·18 cites·21 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →