Inventor · disambiguated record
V. Robert Canfield
Also filed as: CANFIELD V ROBERT
7 granted patents·172 citations·filing 1979–2005
88Inventor score
Top patents by PatentIndex Score
7 records- 0190US7928023B2Composite sheet material and process of makingBUILDING MATERIALS INVEST CORP·Filed 2005·Granted Apr 19, 2011·21 cites·12 claims
- 0281US7172678B2Process of making composite sheet materialGAF MATERIALS CORP·Filed 2003·Granted Feb 6, 2007·22 cites·7 claims
- 0381US4233353AHigh-strength built-up roofing using improved glass fiber matsGAF CORP·Filed 1979·Granted Nov 11, 1980·31 cites·6 claims
- 0476US4242404AHigh-strength glass fiber mat particularly useful for roofing productsGAF CORP·Filed 1979·Granted Dec 30, 1980·26 cites·8 claims
- 0574US4567079AHigh-strength built-up roofing using improved ply sheetsGAF CORP·Filed 1984·Granted Jan 28, 1986·27 cites·12 claims
- 0666US4430158AMethod of improving the wet tensile strength of glass fiber matsGAF CORP·Filed 1981·Granted Feb 7, 1984·28 cites·10 claims
- 0763US4200487AEconomical method of making high-strength glass fiber mats particularly useful for roofing productsGAF CORP·Filed 1979·Granted Apr 29, 1980·17 cites·13 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →