Inventor · disambiguated record
Frederick R. Hopf
Also filed as: HOPF FREDERICK R
9 granted patents·174 citations·filing 1982–1991
89Inventor score
Top patents by PatentIndex Score
9 records- 0189US5190565ASulfonated 2-(2'-hydroxyaryl)-2H-benzotriazoles and/or sulfonated aromatic formaldehyde condensates and their use to improve stain resistance and dye lightfastenessALLIED SIGNAL INC·Filed 1991·Granted Mar 2, 1993·60 cites·10 claims
- 0280US4857435APositive photoresist thermally stable compositions and elements having deep UV response with maleimide copolymerHOECHST CELANESE CORP·Filed 1987·Granted Aug 15, 1989·30 cites·13 claims
- 0370US4959248AProcess for imparting stain resistance to fibers and to anti-staining agents for use in the processALLIED SIGNAL INC·Filed 1987·Granted Sep 25, 1990·23 cites·37 claims
- 0469US5059513APhotochemical image process of positive photoresist element with maleimide copolymerHOECHST CELANESE CORP·Filed 1989·Granted Oct 22, 1991·20 cites·5 claims
- 0564US4735885ADeep UV photoresist composition with 1,3-disubstituted-5-diazobarbituric acidsALLIED CORP·Filed 1985·Granted Apr 5, 1988·14 cites·14 claims
- 0664US4457992AEtchable electrophotographic long-run printing plate and method of making sameALLIED CORP·Filed 1983·Granted Jul 3, 1984·12 cites·29 claims
- 0760US4418135AThermally-stable, infrared-sensitive zinc oxide electrophotographic compositions element and processALLIED CORP·Filed 1982·Granted Nov 29, 1983·10 cites·18 claims
- 0851US4990623ASulfonated 2-(2'-hydroxyaryl)-2H-benzotriazoles and/or sulfonated aromatic formaldehyde condensatesBERENBAUM MORRIS B·Filed 1989·Granted Feb 5, 1991·4 cites·5 claims
- 0931US4902784A1,3 Disubstituted-5-diazobarbituric acidsHOECHST CELANESE CORP·Filed 1987·Granted Feb 20, 1990·1 cites·8 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →