Assignee
HUNT CHEM CORP PHILIP A
17 granted patents·468 citations·filing 1973–1986
Top patents by PatentIndex Score
17 records- 0192US4529682APositive photoresist composition with cresol-formaldehyde novolak resinsHUNT CHEM CORP PHILIP A·Filed 1982·Granted Jul 16, 1985·61 cites·9 claims
- 0292US4377631APositive novolak photoresist compositionsHUNT CHEM CORP PHILIP A·Filed 1981·Granted Mar 22, 1983·79 cites·10 claims
- 0390US4311551AComposition and method for etching copper substratesHUNT CHEM CORP PHILIP A·Filed 1980·Granted Jan 19, 1982·52 cites·28 claims
- 0489US4268597AMethod, apparatus and compositions for liquid development of electrostatic imagesHUNT CHEM CORP PHILIP A·Filed 1979·Granted May 19, 1981·37 cites·90 claims
- 0589US3990980AHybrid liquid tonersHUNT CHEM CORP PHILIP A·Filed 1974·Granted Nov 9, 1976·45 cites·8 claims
- 0687US4587196APositive photoresist with cresol-formaldehyde novolak resin and photosensitive naphthoquinone diazideHUNT CHEM CORP PHILIP A·Filed 1984·Granted May 6, 1986·40 cites·9 claims
- 0787US3991226AMethod of creating an image using hybrid liquid tonersHUNT CHEM CORP PHILIP A·Filed 1974·Granted Nov 9, 1976·35 cites·9 claims
- 0875US4060447AProcess for etching of metalHUNT CHEM CORP PHILIP A·Filed 1976·Granted Nov 29, 1977·14 cites·14 claims
- 0973US4565776APhotographic developer compositionHUNT CHEM CORP PHILIP A·Filed 1985·Granted Jan 21, 1986·12 cites·20 claims
- 1072US4147581AEtching of metalHUNT CHEM CORP PHILIP A·Filed 1977·Granted Apr 3, 1979·12 cites·2 claims
- 1165US4617252AAntireflective coatings for use in the manufacture of semi-conductor devices, methods and solutions for making such coatings, and the method for using such coatings to absorb light in ultraviolet photolithography processesHUNT CHEM CORP PHILIP A·Filed 1984·Granted Oct 14, 1986·28 cites·11 claims
- 1262US4319955AAmmoniacal alkaline cupric etchant solution for and method of reducing etchant undercutHUNT CHEM CORP PHILIP A·Filed 1980·Granted Mar 16, 1982·17 cites·5 claims
- 1361US3935118ANitric acid system for etching magnesium platesHUNT CHEM CORP PHILIP A·Filed 1974·Granted Jan 27, 1976·10 cites·56 claims
- 1455US4032379ANitric acid system for etching magnesium platesHUNT CHEM CORP PHILIP A·Filed 1975·Granted Jun 28, 1977·8 cites·33 claims
- 1542US4650745AMethod of forming a resist pattern by radiation exposure of positive-working resist coating comprising a dye and a trihydroxybenzophenone compound and subsequent aqueous alkaline developmentHUNT CHEM CORP PHILIP A·Filed 1986·Granted Mar 17, 1987·9 cites·6 claims
- 1642US4298681AN,N Disubstituted p-phenylenediamine phosphates to form a color developer working solution, a color developer concentrate containing such a phosphate and a method of using said working solution for color development of color filmHUNT CHEM CORP PHILIP A·Filed 1973·Granted Nov 3, 1981·8 cites·7 claims
- 1723USD243842SSpray etcher for work pieces in which the work pieces first move into the etcher in one direction and then leave the etcher in a reverse directionHUNT CHEM CORP PHILIP A·Filed 1975·Granted Mar 29, 1977·1 cites·1 claims
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