Inventor · disambiguated record
Karl M. E. Hellsten
Also filed as: HELLSTEN KARL M E · HELLSTEN KARL MARTIN EDVIN
18 granted patents·445 citations·filing 1973–1987
95Inventor score
Top patents by PatentIndex Score
18 records- 0193US4358368AProcess for the froth flotation of calcium phosphate-containing minerals and flotation agents thereforBEROL KEMI AB·Filed 1981·Granted Nov 9, 1982·72 cites·23 claims
- 0292US3972855AQuaternary ammonium compounds and treatment of plastic and other materials therewithMODOKEMI AB·Filed 1973·Granted Aug 3, 1976·49 cites·6 claims
- 0389US4476323ASurface-active quaternary ammonium compounds for treatment of textiles and cellulosic materialsHELLSTEN KARL M E·Filed 1981·Granted Oct 9, 1984·68 cites·14 claims
- 0484US4659332AProcess for dry-cleaning textiles and microemulsion dry cleaning composition for the use thereinBEROL KEMI AB·Filed 1982·Granted Apr 21, 1987·26 cites·10 claims
- 0582US4058489ADetergent composition having textile softening and antistatic effectBEROL KEMI AB·Filed 1975·Granted Nov 15, 1977·39 cites·16 claims
- 0678US4384965AMethod for the mechanical working of metals and lubricant concentrateBEROL KEMI AB·Filed 1981·Granted May 24, 1983·27 cites·10 claims
- 0773US3932495AProcess for preparing quaternary ammonium compoundsMODOKEMI AB·Filed 1974·Granted Jan 13, 1976·16 cites·10 claims
- 0872US3954845ASynthetic detergents of the ampholytic betaine type, process for preparing the same and compositionsMODOKEMI AB·Filed 1973·Granted May 4, 1976·15 cites·11 claims
- 0968US4545898AProcess for froth flotationBEROL KEMI AB·Filed 1984·Granted Oct 8, 1985·20 cites·11 claims
- 1065US4315755AHydrocarbon oils containing 1 to 10 percent emulsified water and emulsifiers thereforBEROL KEMI AB·Filed 1980·Granted Feb 16, 1982·25 cites·11 claims
- 1165US4104175AAqueous solutions of quaternary ammonium compoundsMODOKEMI AB·Filed 1975·Granted Aug 1, 1978·21 cites·6 claims
- 1258US4549881AAqueous slurry of a solid fuel and a process and means for the production thereofCARBOGEL AB·Filed 1983·Granted Oct 29, 1985·13 cites·17 claims
- 1357US4018696ALiquid detergent compositionBEROL KEMI AB·Filed 1975·Granted Apr 19, 1977·17 cites·5 claims
- 1456US4496367APumpable aqueous slurry of a solid fuel and a process for the production thereofCARBOGEL AB·Filed 1983·Granted Jan 29, 1985·11 cites·9 claims
- 1547US4565549AAqueous slurry of a solid fuel and a process for the production thereofCARBOGEL AB·Filed 1983·Granted Jan 21, 1986·6 cites·9 claims
- 1645US4430238AEsterified dicarboxylic acid and its useBEROL KEMI AB·Filed 1982·Granted Feb 7, 1984·8 cites·7 claims
- 1742US4887383AProcess for producing a slurry of a pulverized carbonaceous materialCARBOGEL AB·Filed 1987·Granted Dec 19, 1989·7 cites·11 claims
- 1826US4254823AProcess for separating mineral wool fibers from nonfibrous materialsBEROL KEMI AB·Filed 1977·Granted Mar 10, 1981·5 cites·17 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →