Inventor · disambiguated record
Efrain D. Vassallo
Also filed as: VASSALLO EFRAIN D
13 granted patents·475 citations·filing 1980–1988
94Inventor score
Top patents by PatentIndex Score
13 records- 0197USD289078SGasketVASSALLO RES AND DEVELOPMENT CORPORATION·Filed 1984·Granted Mar 31, 1987·62 cites·1 claims
- 0291USD291481SElbow pipe fittingVASSALLO RES AND DEVELOPMENT CORPORATION·Filed 1985·Granted Aug 18, 1987·34 cites·1 claims
- 0389US4826028AGasket seating ringVASSALLO RES & DEV CORP·Filed 1986·Granted May 2, 1989·79 cites·9 claims
- 0489USD291482SPipe couplingVASSALLO RES AND DEVELOPMENT CORPORATION·Filed 1985·Granted Aug 18, 1987·30 cites·1 claims
- 0581USD291480STee pipe fittingVASSALLO RES AND DEVELOPMENT CORPORATION·Filed 1985·Granted Aug 18, 1987·20 cites·1 claims
- 0680US4625383AMethod for seating a gasket in a plastic pipe bell using a hard configured ringVASSALLO RES & DEV CORP·Filed 1985·Granted Dec 2, 1986·45 cites·6 claims
- 0778US4343480APipe bell and gasketVASSALLO EFRAIN D·Filed 1980·Granted Aug 10, 1982·43 cites·17 claims
- 0876US4834430APipe socket insertVASSALLO RES & DEV CORP·Filed 1988·Granted May 30, 1989·40 cites·15 claims
- 0976US4723905APipe belling apparatusVASSALLO RES & DEV CORP·Filed 1986·Granted Feb 9, 1988·35 cites·9 claims
- 1066US4579354AGasketVASSALLO RES & DEV CORP·Filed 1984·Granted Apr 1, 1986·28 cites·3 claims
- 1165US4583772APipe fitting interlocking systemVASSALLO RES & DEV CORP·Filed 1984·Granted Apr 22, 1986·22 cites·4 claims
- 1263US4474392APipe fitting constructionVASSALLO EFRAIN D·Filed 1983·Granted Oct 2, 1984·28 cites·7 claims
- 1361USD291483SCross tee pipe fittingVASSALLO RES AND DEVELOPMENT CORPORATION·Filed 1985·Granted Aug 18, 1987·9 cites·1 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →