Inventor · disambiguated record
David L. Ruff
Also filed as: NATH N GOKUL · RUFF DAVID · RUFF DAVID L · RUFF DAVID LEE
13 granted patents·824 citations·filing 1974–2010
94Inventor score
Top patents by PatentIndex Score
13 records- 0196US4067155ASealing systemGREFCO·Filed 1975·Granted Jan 10, 1978·387 cites·14 claims
- 0292US4063395ATwin membrane, self sealing, mechanically fastened insulated roof deck systemGREFCO·Filed 1974·Granted Dec 20, 1977·86 cites·5 claims
- 0391US4059933AStrip for fastening and sealing sheets of construction materialGREFCO·Filed 1977·Granted Nov 29, 1977·99 cites·24 claims
- 0490US4313997APerlite boards and method for making sameGREFCO·Filed 1980·Granted Feb 2, 1982·64 cites·14 claims
- 0585US6130179APurified attapulgite clayITC INC·Filed 1998·Granted Oct 10, 2000·71 cites·24 claims
- 0670US4142969AComposition and process for selectively removing oleaginous products from waterFUNK RICHARD S·Filed 1975·Granted Mar 6, 1979·33 cites·2 claims
- 0755US4212755ASettle resistant loose-fill perlite insulation comprising particles rendered slightly tacky by a coating thereonGREFCO·Filed 1978·Granted Jul 15, 1980·12 cites·12 claims
- 0854US3958373ATwin membrane, self sealing, mechanically fastened insulated roof deck systemGREFCO·Filed 1975·Granted May 25, 1976·22 cites·3 claims
- 0953US4302344ALoose-fill, thermal insulationGREFCO·Filed 1980·Granted Nov 24, 1981·13 cites·13 claims
- 1052US7247263B2Fire-barrier compositionITC MINERALS & CHEMICALS·Filed 2003·Granted Jul 24, 2007·6 cites·10 claims
- 1151US3978264ACoating for porous surfacesGREFCO·Filed 1975·Granted Aug 31, 1976·21 cites·10 claims
- 1250US4011183ABuilding board products and process for producing sameGREFCO·Filed 1976·Granted Mar 8, 1977·10 cites·29 claims
- 1337US8555562B2Locking jack for a window well coverWARNER VINCE S·Filed 2010·Granted Oct 15, 2013·0 cites·10 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →