Individual holder
LIEBETRAU RICHARD E
US·3 granted patents·49 citations·filing 1983–1989
Individually held — no corporate assignee on record.
Top patents by PatentIndex Score
3 records- 0162US4597698AWall structure for machine enclosuresLIEBETRAU RICHARD E·Filed 1984·Granted Jul 1, 1986·22 cites·7 claims
- 0244US4896473AMethod of converting to a security glazing systemLIEBETRAU RICHARD E·Filed 1989·Granted Jan 30, 1990·18 cites·4 claims
- 0332US4571902APanel mounting system and method for mounting panelsLIEBETRAU RICHARD E·Filed 1983·Granted Feb 25, 1986·9 cites·12 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →