Inventor · disambiguated record
Sidney Lieberman
Also filed as: LIEBERMAN SIDNEY
3 granted patents·78 citations·filing 1976–1982
74Inventor score
Top patents by PatentIndex Score
3 records- 0178US4019220APiston assembly for door closerREADING DOOR CLOSER CORP·Filed 1976·Granted Apr 26, 1977·34 cites·6 claims
- 0259US4419787ADoor closer assist linkageDORMA DOOR CONTROLS INC·Filed 1982·Granted Dec 13, 1983·24 cites·8 claims
- 0359US4394787AHydraulic door closer constructionDORMA DOOR CONTROLS INC·Filed 1978·Granted Jul 26, 1983·20 cites·5 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →