Inventor · disambiguated record
John B. Covington
Also filed as: COVINGTON JOHN B
7 granted patents·332 citations·filing 1979–1990
86Inventor score
Top patents by PatentIndex Score
7 records- 0196US4262072APoly(ethylenically unsaturated alkoxy) heterocyclic protective coatingsMINNESOTA MINING & MFG·Filed 1979·Granted Apr 14, 1981·249 cites·10 claims
- 0283US4306954AProcess for polymerizing acrylic substituted hydantoins in airMINNESOTA MINING & MFG·Filed 1979·Granted Dec 22, 1981·30 cites·19 claims
- 0380US4323591AIrradiation of polyacrylate films in airMINNESOTA MINING & MFG·Filed 1981·Granted Apr 6, 1982·32 cites·7 claims
- 0446US4959293ADeep UV photoresist with alkyl 2-diazo-1-ones as solubility modification agentsBAKER J T INC·Filed 1988·Granted Sep 25, 1990·8 cites·23 claims
- 0546US4816380AWater soluble contrast enhancement layer method of forming resist image on semiconductor chipTEXAS INSTRUMENTS INC·Filed 1986·Granted Mar 28, 1989·9 cites·14 claims
- 0636US4997742AWater soluble contrast enhancement composition with 1-oxy-2 diazonaphthalene sulfonamide salt and polyvinyl alcoholTEXAS INSTRUMENTS INC·Filed 1988·Granted Mar 5, 1991·4 cites·5 claims
- 0727US5173390AWater soluble contrast enhancement composition and method of useTEXAS INSTRUMENTS INC·Filed 1990·Granted Dec 22, 1992·0 cites·9 claims
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