Assignee
ASARCO INC
US·55 granted patents·693 citations·filing 1973–1999
Top patents by PatentIndex Score
55 records- 0187US4789445AMethod for the electrodeposition of metalsASARCO INC·Filed 1986·Granted Dec 6, 1988·54 cites·8 claims
- 0287US4629516AProcess for strengthening lead-antimony alloysASARCO INC·Filed 1985·Granted Dec 16, 1986·37 cites·30 claims
- 0384US4337083ANon-polluting, cooling method and heat recuperative sintering methodASARCO INC·Filed 1979·Granted Jun 29, 1982·22 cites·17 claims
- 0483US6192969B1Casting of high purity oxygen free copperASARCO INC·Filed 1999·Granted Feb 27, 2001·40 cites·13 claims
- 0582US5849172ACopper solvent extraction and electrowinning processASARCO INC·Filed 1997·Granted Dec 15, 1998·45 cites·27 claims
- 0676US5279644AFire refining precious metals asay methodASARCO INC·Filed 1993·Granted Jan 18, 1994·32 cites·3 claims
- 0775US3941609AZinc dust, its preparation, and apparatus for preparing sameASARCO INC·Filed 1973·Granted Mar 2, 1976·17 cites·7 claims
- 0872US4336237ARemoval of mercury from sulfuric acidASARCO INC·Filed 1980·Granted Jun 22, 1982·21 cites·16 claims
- 0969US5935409AFluoboric acid control in a ferric fluoborate hydrometallurgical process for recovering metalsASARCO INC·Filed 1998·Granted Aug 10, 1999·23 cites·10 claims
- 1068US4753688AProcess for strengthening lead-antimony alloysASARCO INC·Filed 1986·Granted Jun 28, 1988·16 cites·28 claims
- 1168US4239081ASide dam apparatus for use in twin-belt continuous casting machinesASARCO INC·Filed 1979·Granted Dec 16, 1980·12 cites·8 claims
- 1265US5614038AMethod for making machinable lead-free copper alloys with additiveASARCO INC·Filed 1995·Granted Mar 25, 1997·20 cites·7 claims
- 1365US5540749AProduction of spherical bismuth shotASARCO INC·Filed 1994·Granted Jul 30, 1996·21 cites·22 claims
- 1463US5110353AProcess for the recovery and separation of arsenic from antimonyASARCO INC·Filed 1991·Granted May 5, 1992·11 cites·5 claims
- 1563US4033761AProcess for the separation of copper sulfide from metallic lead entrained in a drossASARCO INC·Filed 1976·Granted Jul 5, 1977·12 cites·10 claims
- 1662US4260008ASide dam apparatus for use in twin-belt continuous casting machinesASARCO INC·Filed 1979·Granted Apr 7, 1981·11 cites·19 claims
- 1761US5293924AManufacture of copper rodASARCO INC·Filed 1993·Granted Mar 15, 1994·14 cites·6 claims
- 1859US5133948AProcess for the removal of bismuth from copper refining electrolyte by using lead oxideASARCO INC·Filed 1991·Granted Jul 28, 1992·16 cites·3 claims
- 1958US4027001AProcess for recovering sulfur from sulfur dioxideASARCO INC·Filed 1976·Granted May 31, 1977·12 cites·12 claims
- 2057US4808221AProcess for the recovery and separation of arsenic from antimonyASARCO INC·Filed 1987·Granted Feb 28, 1989·10 cites·6 claims
- 2157US4536152AHigh-velocity gas burnersASARCO INC·Filed 1984·Granted Aug 20, 1985·17 cites·10 claims
- 2257US4501412ANon-polluting heat recuperative sintering method and apparatusASARCO INC·Filed 1984·Granted Feb 26, 1985·10 cites·6 claims
- 2356US5103892AContinuous casting of discrete shapesASARCO INC·Filed 1991·Granted Apr 14, 1992·8 cites·5 claims
- 2456US3969202AProcess for the recovery of antimony values from ores containing sulfo-antimony compounds of copper, and arsenicASARCO INC·Filed 1975·Granted Jul 13, 1976·13 cites·27 claims
- 2552US4039323AProcess for the recovery of bismuthASARCO INC·Filed 1976·Granted Aug 2, 1977·7 cites·14 claims
- 2652US3959451ARecovery of sulfur dioxide from gas mixturesASARCO INC·Filed 1974·Granted May 25, 1976·9 cites·26 claims
- 2750US5762683AFerric fluoborate/organic extractant hydrometallurgical process for recovering metalsASARCO INC·Filed 1996·Granted Jun 9, 1998·11 cites·25 claims
- 2850US4511443AMethod of thiourea addition to electrolytic solutions useful for copper refiningASARCO INC·Filed 1984·Granted Apr 16, 1985·8 cites·5 claims
- 2950US4489109AProcess for applying latex rubber coatings to asbestos-cement productsASARCO INC·Filed 1982·Granted Dec 18, 1984·14 cites·12 claims
- 3050US4474649AMethod of thiourea addition of electrolytic solutions useful for copper refiningASARCO INC·Filed 1983·Granted Oct 2, 1984·8 cites·19 claims
- 3149US6153082ACopper cathode starting sheetsASARCO INC·Filed 1999·Granted Nov 28, 2000·10 cites·12 claims
- 3248US5242571AMethod and apparatus for the electrolytic production of copper wireASARCO INC·Filed 1992·Granted Sep 7, 1993·13 cites·41 claims
- 3347US5850034AMaking of metal products using a gas analyzerASARCO INC·Filed 1997·Granted Dec 15, 1998·14 cites·18 claims
- 3447US4902191APail lifterASARCO INC·Filed 1985·Granted Feb 20, 1990·15 cites·6 claims
- 3544US4891061AProcess for treating speissASARCO INC·Filed 1986·Granted Jan 2, 1990·8 cites·7 claims
- 3642US4333763ALow temperature, non-SO2 polluting, kettle process for separation of lead from lead sulfide-containing materialASARCO INC·Filed 1980·Granted Jun 8, 1982·6 cites·20 claims
- 3742US4039322AMethod for the concentration of alkaline bismuthide in a material also containing molten leadASARCO INC·Filed 1976·Granted Aug 2, 1977·4 cites·17 claims
- 3840US3980759ARecovery of sulfur dioxide from gas mixturesASARCO INC·Filed 1975·Granted Sep 14, 1976·5 cites·27 claims
- 3937US4404026AProcess for separation of dross elements combining sodium addition to molten bullion followed by controlled solidification of castingASARCO INC·Filed 1982·Granted Sep 13, 1983·6 cites·10 claims
- 4036US5793637AMethod and apparatus for banding copper cathodesASARCO INC·Filed 1996·Granted Aug 11, 1998·11 cites·13 claims
- 4135US5961797ACopper cathode starting sheetsASARCO INC·Filed 1996·Granted Oct 5, 1999·4 cites·18 claims
- 4233US4722831AProcess for purifying silver refinery slimesASARCO INC·Filed 1985·Granted Feb 2, 1988·4 cites·6 claims
- 4333US4333762ALow temperature, non-SO2 polluting, kettle process for the separation of antimony values from material containing sulfo-antimony compounds of copperASARCO INC·Filed 1980·Granted Jun 8, 1982·3 cites·12 claims
- 4433US3980760ARecovery of sulfur dioxide from gas mixturesASARCO INC·Filed 1974·Granted Sep 14, 1976·5 cites·32 claims
- 4530US4521247ALow temperature, non-SO2 polluting, kettle process for separation of lead from lead sulfide-containing materialASARCO INC·Filed 1983·Granted Jun 4, 1985·2 cites·4 claims
- 4629US5240494AMethod for melting copperASARCO INC·Filed 1991·Granted Aug 31, 1993·6 cites·5 claims
- 4729US5234492ARefining of bismuthASARCO INC·Filed 1992·Granted Aug 10, 1993·6 cites·6 claims
- 4828US4248953AProcess for the production of photoconductive zinc oxide of improved electrophotographic properties, and product thereofASARCO INC·Filed 1979·Granted Feb 3, 1981·2 cites·10 claims
- 4927US4985216AReduction roasting of metal oresASARCO INC·Filed 1988·Granted Jan 15, 1991·3 cites·4 claims
- 5027US4936127AProduction of copper rod by rollingASARCO INC·Filed 1989·Granted Jun 26, 1990·5 cites·2 claims
Showing the top 50 of 55 patent records by PatentIndex Score.
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