Assignee
KENNECOTT COPPER CORP
99 granted patents·1,574 citations·filing 1970–1994
Top patents by PatentIndex Score
99 records- 0195US4227928ACopper-boron carbide composite particle and method for its productionKENNECOTT COPPER CORP·Filed 1978·Granted Oct 14, 1980·69 cites·11 claims
- 0292US4152142ARecovery of copper values from iron-containing ore materials as mined and smeltedKENNECOTT COPPER CORP·Filed 1978·Granted May 1, 1979·39 cites·9 claims
- 0389US4253917AMethod for the production of copper-boron carbide compositeKENNECOTT COPPER CORP·Filed 1979·Granted Mar 3, 1981·80 cites·15 claims
- 0488US4036636APyrometallurgical process for smelting nickel and nickel-copper concentrates including slag treatmentKENNECOTT COPPER CORP·Filed 1975·Granted Jul 19, 1977·28 cites·17 claims
- 0588US3983075ACopper filled conductive epoxyKENNECOTT COPPER CORP·Filed 1974·Granted Sep 28, 1976·46 cites·7 claims
- 0687US4026988ASelective extraction of molybdenum from acidic leach liquorsKENNECOTT COPPER CORP·Filed 1975·Granted May 31, 1977·35 cites·10 claims
- 0787US3960513AMethod for removal of sulfur from coalKENNECOTT COPPER CORP·Filed 1974·Granted Jun 1, 1976·43 cites·23 claims
- 0886US4226685AElectrolytic treatment of plating wastesKENNECOTT COPPER CORP·Filed 1979·Granted Oct 7, 1980·53 cites·11 claims
- 0986US4044094ATwo-stage fluid bed reduction of manganese nodulesKENNECOTT COPPER CORP·Filed 1974·Granted Aug 23, 1977·35 cites·48 claims
- 1085US6149883APressure oxidation process for the production of molybdenum trioxide from molybdeniteKENNECOTT COPPER CORP·Filed 1994·Granted Nov 21, 2000·52 cites·19 claims
- 1185US4172375ACoiling system for metallic strandsKENNECOTT COPPER CORP·Filed 1978·Granted Oct 30, 1979·30 cites·38 claims
- 1285US3932143AFlame-sprayed roofing materialKENNECOTT COPPER CORP·Filed 1974·Granted Jan 13, 1976·41 cites·7 claims
- 1383US4211270AMethod for continuous casting of metallic strands at exceptionally high speedsKENNECOTT COPPER CORP·Filed 1978·Granted Jul 8, 1980·18 cites·80 claims
- 1482US4039404ACyclic process using A.C. for selective recovery of metals from materials containing sameKENNECOTT COPPER CORP·Filed 1976·Granted Aug 2, 1977·27 cites·17 claims
- 1579US4232727AMethod and apparatus for the continuous production of stripKENNECOTT COPPER CORP·Filed 1978·Granted Nov 11, 1980·15 cites·23 claims
- 1677US4266987AProcess for providing acid-resistant oxide layers on alloysKENNECOTT COPPER CORP·Filed 1977·Granted May 12, 1981·22 cites·2 claims
- 1777US4149880ARecovery of copper from arsenic containing metallurgical waste materialsKENNECOTT COPPER CORP·Filed 1978·Granted Apr 17, 1979·23 cites·9 claims
- 1877US4107262ACuprion process start-up controlKENNECOTT COPPER CORP·Filed 1974·Granted Aug 15, 1978·18 cites·9 claims
- 1977US3979275AApparatus for series electrowinning and electrorefining of metalKENNECOTT COPPER CORP·Filed 1975·Granted Sep 7, 1976·22 cites·14 claims
- 2076US4360234AIn-situ method and apparatus for sparging gas bubblesKENNECOTT COPPER CORP·Filed 1976·Granted Nov 23, 1982·33 cites·9 claims
- 2176US4113586AMethod and apparatus for the electrolytic recovery of metal employing electrolyte convectionKENNECOTT COPPER CORP·Filed 1977·Granted Sep 12, 1978·20 cites·22 claims
- 2275US3950488AProcess for recovering copper from basic carbonate mixturesKENNECOTT COPPER CORP·Filed 1974·Granted Apr 13, 1976·18 cites·27 claims
- 2374US4110106ASelective sulfation process for partitioning ferrous and non-ferrous values in an oreKENNECOTT COPPER CORP·Filed 1977·Granted Aug 29, 1978·15 cites·28 claims
- 2474US4033839AMethod for series electrowinning and electrorefining of metalsKENNECOTT COPPER CORP·Filed 1976·Granted Jul 5, 1977·20 cites·9 claims
- 2574US4001011APyrometallurgical recovery of iron from iron silicate slagsKENNECOTT COPPER CORP·Filed 1975·Granted Jan 4, 1977·19 cites·4 claims
- 2674US3987784ASolar energy absorber panelKENNECOTT COPPER CORP·Filed 1975·Granted Oct 26, 1976·34 cites·8 claims
- 2774US3981753AStop-weld composition and the method of using itKENNECOTT COPPER CORP·Filed 1970·Granted Sep 21, 1976·27 cites·1 claims
- 2874US3942974AManganese nodule pelletizingKENNECOTT COPPER CORP·Filed 1975·Granted Mar 9, 1976·18 cites·18 claims
- 2973US4149945AHydrometallurgical brass dust reclamationKENNECOTT COPPER CORP·Filed 1978·Granted Apr 17, 1979·19 cites·5 claims
- 3072US4083921APurifying molybdenum flotation concentratesKENNECOTT COPPER CORP·Filed 1977·Granted Apr 11, 1978·24 cites·10 claims
- 3171US4132758ACopper leaching employing nitrogen dioxide as oxidantKENNECOTT COPPER CORP·Filed 1977·Granted Jan 2, 1979·17 cites·7 claims
- 3271US4116488AIn-situ mining method and apparatusKENNECOTT COPPER CORP·Filed 1976·Granted Sep 26, 1978·35 cites·98 claims
- 3370US4211753ARecovery of molybdenum values from dilute solutionsKENNECOTT COPPER CORP·Filed 1978·Granted Jul 8, 1980·13 cites·12 claims
- 3470US4207153AElectrorefining cell with bipolar electrode and electrorefining methodKENNECOTT COPPER CORP·Filed 1979·Granted Jun 10, 1980·22 cites·11 claims
- 3570US4189461AMetal leaching from concentrates using nitrogen dioxide in acidsKENNECOTT COPPER CORP·Filed 1978·Granted Feb 19, 1980·13 cites·10 claims
- 3669US4083915ACobalt stripping processKENNECOTT COPPER CORP·Filed 1975·Granted Apr 11, 1978·13 cites·48 claims
- 3769US4005173ASteam stripping of ammoniacal solutions and simultaneous loading of metal values by organic acidsKENNECOTT COPPER CORP·Filed 1975·Granted Jan 25, 1977·13 cites·18 claims
- 3868US4043882ASelective solvent extraction process for copper from nickelKENNECOTT COPPER CORP·Filed 1972·Granted Aug 23, 1977·15 cites·7 claims
- 3968US4043599AAcid preinjection to decrease instantaneous acid consumption in in-situ miningKENNECOTT COPPER CORP·Filed 1975·Granted Aug 23, 1977·34 cites·17 claims
- 4068US3950487ASolvent-in-pulp extraction of copper and nickel from ammoniacal leach slurriesKENNECOTT COPPER CORP·Filed 1974·Granted Apr 13, 1976·12 cites·16 claims
- 4167US4060409AMechanically stirred furnace for pyrometallurgical operations and processesKENNECOTT COPPER CORP·Filed 1976·Granted Nov 29, 1977·11 cites·12 claims
- 4266US4197233AAnti-fouling and anti-sliming coating materialKENNECOTT COPPER CORP·Filed 1978·Granted Apr 8, 1980·17 cites·9 claims
- 4365US4026772ADirect electrochemical recovery of copper from dilute acidic solutionsKENNECOTT COPPER CORP·Filed 1975·Granted May 31, 1977·14 cites·16 claims
- 4464US4072262AMethod of fabricating a solar heating unitKENNECOTT COPPER CORP·Filed 1977·Granted Feb 7, 1978·24 cites·8 claims
- 4564US3983017ARecovery of metal values from manganese deep sea nodules using ammoniacal cuprous leach solutionsKENNECOTT COPPER CORP·Filed 1975·Granted Sep 28, 1976·21 cites·40 claims
- 4662US3988151ALiquid ion exchange process for the recovery of copper and nickelKENNECOTT COPPER CORP·Filed 1975·Granted Oct 26, 1976·11 cites·10 claims
- 4761US4045084AIn-situ mining of copper and nickelKENNECOTT COPPER CORP·Filed 1976·Granted Aug 30, 1977·23 cites·11 claims
- 4860US4218907ARolling mill bearing assemblyKENNECOTT COPPER CORP·Filed 1979·Granted Aug 26, 1980·8 cites·2 claims
- 4959US4032332AProcess for increasing the rate of copper metal production in a quinolic extraction systemKENNECOTT COPPER CORP·Filed 1976·Granted Jun 28, 1977·9 cites·26 claims
- 5059US3988416AElevated pressure operation in the cuprion processKENNECOTT COPPER CORP·Filed 1974·Granted Oct 26, 1976·9 cites·15 claims
Showing the top 50 of 99 patent records by PatentIndex Score.
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