Inventor · disambiguated record
David N. Roark
Also filed as: ROARK DAVID N
9 granted patents·222 citations·filing 1985–1999
89Inventor score
Top patents by PatentIndex Score
9 records- 0190US6110387ASulfamate stabilization of a bromine biocide in waterALBEMARLE CORP·Filed 1999·Granted Aug 29, 2000·86 cites·14 claims
- 0277US4859530AHigh temperature adhesive for polymide filmsETHYL CORP·Filed 1987·Granted Aug 22, 1989·37 cites·24 claims
- 0374US4706755AFluid loss control in well cement slurriesETHYL CORP·Filed 1987·Granted Nov 17, 1987·26 cites·16 claims
- 0462US4963649ACopolyimide aromatic sulfone-fluoroaliphatic resin compositionETHYL CORP·Filed 1989·Granted Oct 16, 1990·12 cites·12 claims
- 0561US4657948AFluid loss control in well cement slurriesETHYL CORP·Filed 1985·Granted Apr 14, 1987·31 cites·66 claims
- 0658US4614593ADemulsification of oil-in-water emulsionsETHYL CORP·Filed 1985·Granted Sep 30, 1986·19 cites·37 claims
- 0740US4927896AProcess for polymerizing monoallylamineETHYL CORP·Filed 1989·Granted May 22, 1990·4 cites·18 claims
- 0834US4661263AWater clarificationETHYL CORP·Filed 1985·Granted Apr 28, 1987·6 cites·23 claims
- 0929US4698380AFluid loss control in well cement slurriesETHYL CORP·Filed 1986·Granted Oct 6, 1987·1 cites·16 claims
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