Assignee
NORDDEUTSCHE AFFINERIE
31 granted patents·785 citations·filing 1973–2001
Top patents by PatentIndex Score
31 records- 0194US4775598AProcess for producing hollow spherical particles and sponge-like particles composed therefromNORDDEUTSCHE AFFINERIE·Filed 1987·Granted Oct 4, 1988·172 cites·15 claims
- 0292US4917857AProcess for producing metallic or ceramic hollow-sphere bodiesNORDDEUTSCHE AFFINERIE·Filed 1988·Granted Apr 17, 1990·145 cites·10 claims
- 0389US4321289AMethod of and apparatus for the cladding of steel sheet or strip with lower melting metals or alloysNORDDEUTSCHE AFFINERIE·Filed 1980·Granted Mar 23, 1982·64 cites·14 claims
- 0489US4046687AProcess for the adsorptive removal of arsenic, antimony and/or bismuth from an aqueous solutionNORDDEUTSCHE AFFINERIE·Filed 1976·Granted Sep 6, 1977·34 cites·5 claims
- 0585US4647358ACurrent-feeding cathode-mounting deviceNORDDEUTSCHE AFFINERIE·Filed 1985·Granted Mar 3, 1987·41 cites·4 claims
- 0682US4404169AProcess for producing cupric hydroxideNORDDEUTSCHE AFFINERIE·Filed 1982·Granted Sep 13, 1983·36 cites·13 claims
- 0775US4909837AProcess and apparatus for granulating molten slagNORDDEUTSCHE AFFINERIE·Filed 1989·Granted Mar 20, 1990·27 cites·8 claims
- 0874US5413626AProcess for the wet cleaning of gasesNORDDEUTSCHE AFFINERIE·Filed 1993·Granted May 9, 1995·42 cites·5 claims
- 0974US4245821ARefining furnace for nonferrous metalNORDDEUTSCHE AFFINERIE·Filed 1979·Granted Jan 20, 1981·18 cites·8 claims
- 1072US7264767B2Method and device for reducing the oxygen content of a copper meltNORDDEUTSCHE AFFINERIE·Filed 2001·Granted Sep 4, 2007·11 cites·22 claims
- 1171US4834842AMethod of measuring the effective inhibitor concentration during a deposition of metal from aqueous electrolytes and test apparatus thereforNORDDEUTSCHE AFFINERIE·Filed 1988·Granted May 30, 1989·42 cites·10 claims
- 1268US4944935AProcess for producing copper hydroxideNORDDEUTSCHE AFFINERIE·Filed 1988·Granted Jul 31, 1990·15 cites·11 claims
- 1363US4263120AElectrolytic cell for the recovery of nonferrous metals and improved anode thereforNORDDEUTSCHE AFFINERIE·Filed 1979·Granted Apr 21, 1981·13 cites·10 claims
- 1462US4670124ACathode for use in the electrolytic refining of copper and method of making sameNORDDEUTSCHE AFFINERIE·Filed 1986·Granted Jun 2, 1987·18 cites·16 claims
- 1561US4065250AMethod of independently adjusting the fuel mixture composition and melting rate of multiburner shaft furnaces for melting metalsNORDDEUTSCHE AFFINERIE·Filed 1976·Granted Dec 27, 1977·18 cites·11 claims
- 1658US4614541AMethod of continuous metallurgical processing of copper-lead matteNORDDEUTSCHE AFFINERIE·Filed 1985·Granted Sep 30, 1986·13 cites·3 claims
- 1756US5409686AProcess for producing yellow copper (I) oxide with narrow particle size rangeNORDDEUTSCHE AFFINERIE·Filed 1991·Granted Apr 25, 1995·10 cites·5 claims
- 1847US4044045ACombating pests with di-(2-thioureido-(N-alkoxycarbonyl)-N-phenylureido)-compoundsNORDDEUTSCHE AFFINERIE·Filed 1976·Granted Aug 23, 1977·4 cites·3 claims
- 1945US3988225AMethod of preventing the supersaturation of electrolyte solutions with one or more of the impurities arsenic, antimony and bismuth, in the electrolytic refining of nonferrous metals, especially copperNORDDEUTSCHE AFFINERIE·Filed 1975·Granted Oct 26, 1976·7 cites·9 claims
- 2039US4665842AApparatus for producing ignitable solids-gas suspensionsNORDDEUTSCHE AFFINERIE·Filed 1985·Granted May 19, 1987·10 cites·9 claims
- 2139US4615351AMethod of and apparatus for monitoring the surface level of material in a vesselNORDDEUTSCHE AFFINERIE·Filed 1984·Granted Oct 7, 1986·10 cites·7 claims
- 2239US4614640AProcess of producing copper (II) hydroxideNORDDEUTSCHE AFFINERIE·Filed 1985·Granted Sep 30, 1986·5 cites·7 claims
- 2336US4560702APesticidal C6 -C25 -mercapto-organotin compoundsNORDDEUTSCHE AFFINERIE·Filed 1983·Granted Dec 24, 1985·1 cites·8 claims
- 2435US4200265AFurnace for the melting and refining of copperNORDDEUTSCHE AFFINERIE·Filed 1978·Granted Apr 29, 1980·8 cites·10 claims
- 2535US4133892ACombating pests with di-[2-thioureido-(N-alkoxycarbonyl)-N-phenylureido]-compoundsNORDDEUTSCHE AFFINERIE·Filed 1977·Granted Jan 9, 1979·2 cites·3 claims
- 2634US4818280AProcess for producing nonferrous metal powderNORDDEUTSCHE AFFINERIE·Filed 1988·Granted Apr 4, 1989·8 cites·10 claims
- 2733US4871147AApparatus for the pyrometallurgical processing of fine-grained solidsNORDDEUTSCHE AFFINERIE·Filed 1987·Granted Oct 3, 1989·3 cites·8 claims
- 2833US4251489AProcess for producing a copper sulfate solutionNORDDEUTSCHE AFFINERIE·Filed 1979·Granted Feb 17, 1981·4 cites·8 claims
- 2931US4329170AMethod of treating sulfur-containing metallurgical materialsNORDDEUTSCHE AFFINERIE·Filed 1979·Granted May 11, 1982·3 cites·8 claims
- 3026US5707420AProcess for the production of a copper powder containing dispersoidsNORDDEUTSCHE AFFINERIE·Filed 1995·Granted Jan 13, 1998·1 cites·13 claims
- 3126US3947612AMethod of forming active surfaces on solidsNORDDEUTSCHE AFFINERIE·Filed 1973·Granted Mar 30, 1976·0 cites·1 claims
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