Inventor · disambiguated record
Joseph E. Ritsko
Also filed as: ACLA HOWARD L · RITSKO JOSEPH E
42 granted patents·840 citations·filing 1973–1989
98Inventor score
Top patents by PatentIndex Score
42 records- 0196US4731111AHydrometallurical process for producing finely divided spherical refractory metal based powdersGTE PROD CORP·Filed 1987·Granted Mar 15, 1988·126 cites·14 claims
- 0292US4695439AYttrium oxide stabilized zirconium oxideGTE PROD CORP·Filed 1986·Granted Sep 22, 1987·40 cites·2 claims
- 0392US4070184AProcess for producing refractory carbide grade powderGTE SYLVANIA INC·Filed 1976·Granted Jan 24, 1978·45 cites·5 claims
- 0486US4802915AProcess for producing finely divided spherical metal powders containing an iron group metal and a readily oxidizable metalGTE PROD CORP·Filed 1988·Granted Feb 7, 1989·50 cites·16 claims
- 0586US4731110AHydrometallurigcal process for producing finely divided spherical precious metal based powdersGTE PROD CORP·Filed 1987·Granted Mar 15, 1988·49 cites·12 claims
- 0686US4348224AMethod for producing cobalt metal powderGTE PROD CORP·Filed 1981·Granted Sep 7, 1982·25 cites·7 claims
- 0785US4772315AHydrometallurgical process for producing finely divided spherical maraging steel powders containing readily oxidizable alloying elementsGTE PROD CORP·Filed 1988·Granted Sep 20, 1988·45 cites·16 claims
- 0881US3973948AFree flowing powder and process for producing itGTE SYLVANIA INC·Filed 1975·Granted Aug 10, 1976·30 cites·6 claims
- 0980US5114471AHydrometallurgical process for producing finely divided spherical maraging steel powdersGTE PROD CORP·Filed 1988·Granted May 19, 1992·37 cites·8 claims
- 1080US4787934AHydrometallurgical process for producing spherical maraging steel powders utilizing spherical powder and elemental oxidizable speciesGTE PROD CORP·Filed 1988·Granted Nov 29, 1988·37 cites·14 claims
- 1177US4859237AHydrometallurgical process for producing spherical maraging steel powders with readily oxidizable alloying elementsGTE PROD CORP·Filed 1988·Granted Aug 22, 1989·33 cites·15 claims
- 1276US4233063AProcess for producing cobalt powderGTE PROD CORP·Filed 1979·Granted Nov 11, 1980·27 cites·9 claims
- 1376US4214895AMethod for producing cobalt metal powderGTE SYLVANIA INC·Filed 1979·Granted Jul 29, 1980·16 cites·14 claims
- 1474US4913731AProcess of making prealloyed tungsten alloy powdersGTE PROD CORP·Filed 1988·Granted Apr 3, 1990·29 cites·19 claims
- 1573US3956474AProcess for producing ammonium metatungstate from ammonium tungstate by digestion in silicaGTE SYLVANIA INC·Filed 1975·Granted May 11, 1976·14 cites·3 claims
- 1672US4966760AMethod for recovering chromium from chromium-bearing materialLADD JUDITH A·Filed 1989·Granted Oct 30, 1990·18 cites·1 claims
- 1771US4859236AProcess for producing molybdenum-ruthenium metal powderGTE PROD CORP·Filed 1988·Granted Aug 22, 1989·17 cites·5 claims
- 1871US4490340AProcess for the recovery of high purity tantalum oxideGTE PROD CORP·Filed 1984·Granted Dec 25, 1984·15 cites·15 claims
- 1967US4948527AMethod of making europium activated yttrium oxide phosphorGTE PROD CORP·Filed 1989·Granted Aug 14, 1990·22 cites·3 claims
- 2067US4184868AMethod for producing extra fine cobalt metal powderGTE SYLVANIA INC·Filed 1979·Granted Jan 22, 1980·12 cites·8 claims
- 2166US4537750AProcess for producing high purity tantalum oxideGTE PROD CORP·Filed 1984·Granted Aug 27, 1985·12 cites·10 claims
- 2264US4495158AProcess for the recovery of tantalum valuesGTE PROD CORP·Filed 1984·Granted Jan 22, 1985·11 cites·13 claims
- 2361US4214894AMethod for producing cobalt metal powderGTE PROD CORP·Filed 1979·Granted Jul 29, 1980·11 cites·14 claims
- 2457US4927456AHydrometallurgical process for producing finely divided iron based powdersGTE PROD CORP·Filed 1987·Granted May 22, 1990·15 cites·13 claims
- 2556US4900590AMethod for producing aluminum oxide coated iron powderGTE PROD CORP·Filed 1989·Granted Feb 13, 1990·14 cites·6 claims
- 2656US4028095AFree flowing powder and process for producing itGTE SYLVANIA INC·Filed 1976·Granted Jun 7, 1977·13 cites·7 claims
- 2750US4348231AMethod of recovering metal carbidesGTE PROD CORP·Filed 1980·Granted Sep 7, 1982·9 cites·8 claims
- 2848US4255397AProcess for removing tungsten from cemented tungsten carbideGTE PROD CORP·Filed 1979·Granted Mar 10, 1981·6 cites·5 claims
- 2945US4684400AMethod for controlling the oxygen content in agglomerated molybdenum powdersGTE PROD CORP·Filed 1986·Granted Aug 4, 1987·7 cites·3 claims
- 3044US4626422AHigh purity high surface area silicon nitrideGTE PROD CORP·Filed 1985·Granted Dec 2, 1986·6 cites·7 claims
- 3144US4578251ARemoval of chromium from cobaltGTE PROD CORP·Filed 1985·Granted Mar 25, 1986·5 cites·5 claims
- 3243US4710368AHigh purity high surface area alpha crystalline silicon nitrideGTE PROD CORP·Filed 1986·Granted Dec 1, 1987·6 cites·4 claims
- 3343US4482526ARecovery of tungsten and molybdenum from sulfur-bearing materialGTE PROD CORP·Filed 1983·Granted Nov 13, 1984·5 cites·4 claims
- 3441US4379126AProcess for recovering tungsten values from alkali solutionsGTE PROD CORP·Filed 1981·Granted Apr 5, 1983·4 cites·1 claims
- 3536US4723993AHydrometallurgical process for producing finely divided spherical low melting temperature metal based powdersGTE PROD CORP·Filed 1987·Granted Feb 9, 1988·5 cites·13 claims
- 3634US4900587AMethod for producing aluminum oxide coated iron-aluminum alloy powderGTE PROD CORP·Filed 1989·Granted Feb 13, 1990·4 cites·6 claims
- 3734US4792351AHydrometallurgical process for producing irregular morphology powdersGTE PROD CORP·Filed 1988·Granted Dec 20, 1988·4 cites·9 claims
- 3833US5000785AMethod for controlling the oxygen content in agglomerated molybdenum powdersGTE PROD CORP·Filed 1989·Granted Mar 19, 1991·4 cites·2 claims
- 3931US5102454AHydrometallurgical process for producing irregular shaped powders with readily oxidizable alloying elementsGTE PROD CORP·Filed 1989·Granted Apr 7, 1992·3 cites·11 claims
- 4031US4898749AMethod for producing aluminum oxide coated cobalt powderGTE PROD CORP·Filed 1989·Granted Feb 6, 1990·2 cites·6 claims
- 4131US3947616AProcess for producing cobalt coated refractory metal carbidesGTE SYLVANIA INC·Filed 1973·Granted Mar 30, 1976·5 cites·7 claims
- 4223US4801472AProcess for coating tungsten carbide with cobalt metalGTE PRODUCT CORP·Filed 1987·Granted Jan 31, 1989·2 cites·3 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →