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.
Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →