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SORVALL INC IVAN

Overview
  • Total Patents
    72
About

SORVALL INC IVAN has a total of 72 patent applications. Its first patent ever was published in 1949. It filed its patents most often in United States, Germany and United Kingdom. Its main competitors in its focus markets machines, measurement and biotechnology are DIESSE DIAGNOSTICA, STAGO INSTRUMENTS and DADE REAGENTS INC.

Patent filings in countries

World map showing SORVALL INC IVANs patent filings in countries
# Country Total Patents
#1 United States 28
#2 Germany 15
#3 United Kingdom 13
#4 Canada 10
#5 France 4
#6 Austria 1
#7 Sweden 1

Patent filings per year

Chart showing SORVALL INC IVANs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Blum Josef 20
#2 Filz Charles J 10
#3 Josef Blum 9
#4 Blum J 3
#5 Joseph Filz Charles 3
#6 Paulsen C 2
#7 Francis Williams John 2
#8 Romanauskas William A 2
#9 Schlutz Charles A 2
#10 Romanauskas W 1

Latest patents

Publication Filing date Title
US3819111A Centrifuge rotor cover
US3837633A Centrifuge test tube holder
US3771405A Microtome
GB1356277A Liquid chromatography apparatus
US3734693A Apparatus for drying and developing chromatograms
US3770191A Means for stabilizing high speed rotors
US3680420A Cryogenic microtome apparatus
US3674197A Washing means for flexible bags in split enclosures
US3635370A Centrifuge tube closure assembly
US3655293A Variable and reversing hydraulic drive system for turbines
US3706413A Automatic filling apparatus for cell washing centrifuge
US3628386A Micrometer stage advance device for scientific instruments or the like
US3666171A Swinging bucket centrifuge rotor
DE1918531A1 Turbine drive device
US3420437A Cell washing centrifuge
US3496819A Tissue sectioner
US3452924A System and method for washing blood and the like
US3309032A Cell fractionator apparatus
US3262040A Speed control system for centrifuge motors and the like
US3165266A Cell fractionator apparatus and method