Inventor · disambiguated record
Henry H. Duval
Also filed as: DUVAL HENRY H · DUVAL JR HENRY H
4 granted patents·132 citations·filing 1981–1985
80Inventor score
Top patents by PatentIndex Score
4 records- 0185US4630965AApparatus for sealing pavement seamsCLEANSEAL SYSTEMS INC·Filed 1985·Granted Dec 23, 1986·61 cites·11 claims
- 0265US4511283AMethod and apparatus for sealing of pavement seamsDUVAL HENRY H·Filed 1983·Granted Apr 16, 1985·27 cites·7 claims
- 0365US4451180AMethod for restructuring railway roadbedsDUVAL HENRY H·Filed 1981·Granted May 29, 1984·27 cites·1 claims
- 0455US4464200APlastic soil stabilizer composition and method of useELLIS WILLIAM B·Filed 1982·Granted Aug 7, 1984·17 cites·3 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →