Inventor · disambiguated record
Toivo Niskanen
Also filed as: NISKANEN TOIVO · NISKANEN TOIVO J
23 granted patents·605 citations·filing 1979–1995
96Inventor score
Top patents by PatentIndex Score
23 records- 0198US4594052ACentrifugal pump for liquids containing solid materialAHLSTROEM OY·Filed 1983·Granted Jun 10, 1986·144 cites·2 claims
- 0292US4921400APump and a method of separating gas by such from a fluid to be pumpedAHLSTROEM OY·Filed 1988·Granted May 1, 1990·73 cites·43 claims
- 0388US4273562AMethod and apparatus for pumping gaseous liquids and separating the gaseous components therefromAHLSTROEM OY·Filed 1979·Granted Jun 16, 1981·46 cites·4 claims
- 0487US5462585AMethod and apparatus for separating gas from a gaseous materialAHLSTROEM OY·Filed 1992·Granted Oct 31, 1995·38 cites·12 claims
- 0587US4435193AControlling operation of a centrifugal pumpKAMYR AB·Filed 1982·Granted Mar 6, 1984·64 cites·25 claims
- 0685US4410337AMethod and an apparatus for separating a gas from a fibre suspensionAHLSTROEM OY·Filed 1980·Granted Oct 18, 1983·55 cites·8 claims
- 0778US4675033AApparatus for separating gas from a fibre suspensionAHLSTROEM OY·Filed 1985·Granted Jun 23, 1987·26 cites·7 claims
- 0877US4834547AApparatus for mixing chemicals in fibre suspensionsKAMYR AB·Filed 1986·Granted May 30, 1989·21 cites·7 claims
- 0968US5266160AMethod of an apparatus for treating pulpKAMYR INC·Filed 1990·Granted Nov 30, 1993·14 cites·29 claims
- 1059US4964950AMethod and apparatus for dividing and uniting the flows of high-consistency fibre suspensionsAHLSTROEM OY·Filed 1989·Granted Oct 23, 1990·16 cites·4 claims
- 1158US5279709AMethod and apparatus for improving the control and treatment of fiber suspension flowAHLSTROEM A·Filed 1991·Granted Jan 18, 1994·13 cites·6 claims
- 1256US4435122AMethod and apparatus for pumping fiber suspensionsAHLSTROEM OY·Filed 1981·Granted Mar 6, 1984·17 cites·2 claims
- 1351US4975204AMethod and apparatus for thickening fiber suspensionAHLSTROEM OY·Filed 1988·Granted Dec 4, 1990·7 cites·25 claims
- 1446US4884943AMethod and apparatus for pumping high-consistency fiber suspensionAHLSTROEM OY·Filed 1988·Granted Dec 5, 1989·11 cites·10 claims
- 1543US4476886AAffixation of a pump to a tankKAMYR AB·Filed 1982·Granted Oct 16, 1984·9 cites·20 claims
- 1642US5000658AApparatus for pumping high consistency fiber suspensionAHLSTROEM OY·Filed 1989·Granted Mar 19, 1991·8 cites·10 claims
- 1740US6071331AMethod and apparatus for separating gas from a gaseous materialAHLSTROEM OY·Filed 1995·Granted Jun 6, 2000·8 cites·14 claims
- 1839US5536368AMethod and apparatus for mixing a first medium to a second medium and a bleaching process applying said methodAHLSTROEM OY·Filed 1992·Granted Jul 16, 1996·10 cites·33 claims
- 1939US5156750AMethod and apparatus for thickening a fiber suspension and removing fine particles therefromAHLSTROEM OY·Filed 1990·Granted Oct 20, 1992·6 cites·21 claims
- 2035US5228829AMethod and apparatus for dividing flow of high-consistency fiber suspensionAHLSTROEM OY·Filed 1990·Granted Jul 20, 1993·8 cites·5 claims
- 2135US5034120AMethod for keeping a screen or filter surface clearAHLSTROEM OY·Filed 1990·Granted Jul 23, 1991·3 cites·4 claims
- 2234US5120398AArrangement for discharging pulp from a pulp treatment apparatusAHLSTROEM OY·Filed 1990·Granted Jun 9, 1992·2 cites·15 claims
- 2333US5258100AMinimizing gas separation in a mixer outletKAMYR INC·Filed 1992·Granted Nov 2, 1993·6 cites·12 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →