Assignee
DURO LAST ROOFING INC
US·6 granted patents·276 citations·filing 1985–1989
Top patents by PatentIndex Score
6 records- 0184US4909135ARoof vent structure for plastic membrane roofsDURO LAST ROOFING INC·Filed 1989·Granted Mar 20, 1990·64 cites·15 claims
- 0280US4652321AMethods of forming polymer coated fabric roof vent pipe enclosures in flexible roof covering membranesDURO LAST ROOFING INC·Filed 1985·Granted Mar 24, 1987·48 cites·18 claims
- 0378US4872296ACorner pieces for single-ply polymer-coated fabric core roof membranes and the product thereby formedDURO LAST ROOFING INC·Filed 1988·Granted Oct 10, 1989·49 cites·2 claims
- 0477US4799986AMethod of fabricating polymer-coated fabric outside corner pieces for single-ply polymer-coated fabric core roof membranesDURO LAST ROOFING INC·Filed 1987·Granted Jan 24, 1989·43 cites·15 claims
- 0569US4848045ARoof edge structures incorporated with single-ply polymer-coated fabric roof structures, and methods of making and assembling themDURO LAST ROOFING INC·Filed 1988·Granted Jul 18, 1989·44 cites·15 claims
- 0664US4963219AMethod of making and assembling roof edge structures incorporated with single-ply polymer-coated fabric roof structuresDURO LAST ROOFING INC·Filed 1989·Granted Oct 16, 1990·28 cites·2 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →