Inventor · disambiguated record
John P. Hager
Also filed as: HAGER JOHN P · STEPHENS FRANK A
14 granted patents·1 pending application·217 citations·filing 1978–2001
93Inventor score
Top patents by PatentIndex Score
15 records- 0187US5137566AProcess for preheating iron-containing reactor feed prior to being treated in a fluidized bed reactorIRON CARBIDE HOLDINGS LTD·Filed 1990·Granted Aug 11, 1992·48 cites·25 claims
- 0277US5118479AProcess for using fluidized bed reactorIRON CARBIDE HOLDINGS LTD·Filed 1990·Granted Jun 2, 1992·33 cites·10 claims
- 0375US5073194AProcess for controlling the product quality in the conversion of reactor feed into iron carbideIRON CARBIDE HOLDINGS LTD·Filed 1990·Granted Dec 17, 1991·36 cites·21 claims
- 0468US6428763B1Process for the production of iron carbide from iron oxide using external sources of carbon monoxideIRON CARBIDE HOLDINGS LTD·Filed 2000·Granted Aug 6, 2002·9 cites·49 claims
- 0563US5110353AProcess for the recovery and separation of arsenic from antimonyASARCO INC·Filed 1991·Granted May 5, 1992·11 cites·5 claims
- 0662US5904783AMethod for reducing lead leaching in fixturesHAZEN RESEARCH·Filed 1997·Granted May 18, 1999·16 cites·23 claims
- 0762US5366897AMethod for controlling the conversion of iron-containing reactor feed into iron carbideIRON CARBIDE HOLDINGS LTD·Filed 1993·Granted Nov 22, 1994·26 cites·20 claims
- 0860US4618480ARecovery of alumina values from alunite oreRESOURCE TECHN ASS·Filed 1984·Granted Oct 21, 1986·10 cites·37 claims
- 0957US4808221AProcess for the recovery and separation of arsenic from antimonyASARCO INC·Filed 1987·Granted Feb 28, 1989·10 cites·6 claims
- 1053USD255187SCombined spice rack and splash guard for mobile homesGolden West Mobile Homes·Filed 1978·Granted Jun 3, 1980·6 cites·1 claims
- 1143US5223021AIron as a co-additive in refining crude lead bullionDU PONT·Filed 1992·Granted Jun 29, 1993·5 cites·6 claims
- 1235US2002009411A1Method for producing tungsten carbideFiled 2001·Application pending·0 cites
- 1334US5183496ACopper speiss as a co-additive in refining crude lead bullionDU PONT·Filed 1992·Granted Feb 2, 1993·2 cites·4 claims
- 1433US5108497ATreatment of indium dustsINDIUM CORP AMERICA·Filed 1990·Granted Apr 28, 1992·4 cites·10 claims
- 1530US5183497AIron and a copper speiss as co-additives in refining crude lead bullionDU PONT·Filed 1992·Granted Feb 2, 1993·1 cites·6 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →