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INFORMATION STORAGE SYSTEMS

Overview
  • Total Patents
    170
About

INFORMATION STORAGE SYSTEMS has a total of 170 patent applications. Its first patent ever was published in 1968. It filed its patents most often in United States, Canada and France. Its main competitors in its focus markets audio-visual technology, control and measurement are GEN PHONOGRAPH CORP, MERROW BRIAN S and SEAGATE REMOVABLE STORAGE.

Patent filings in countries

World map showing INFORMATION STORAGE SYSTEMSs patent filings in countries
# Country Total Patents
#1 United States 36
#2 Canada 26
#3 France 26
#4 United Kingdom 25
#5 Germany 23
#6 Netherlands 16
#7 Italy 13
#8 Japan 3
#9 Spain 1
#10 Sweden 1

Patent filings per year

Chart showing INFORMATION STORAGE SYSTEMSs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Sordello Frank J 30
#2 Halfhill Martin O 17
#3 Martin Timothy W 13
#4 Sordello F 11
#5 Cuda John 11
#6 Wilford Charles R 8
#7 Pejcha Ivan 7
#8 Halfhill M 6
#9 Caletti Robert H 6
#10 Brunner Russell K 6

Latest patents

Publication Filing date Title
US3938192A Method of manufacturing a spindle assembly for a disc drive
CA1026460A Method of manufacturing a spindle assembly for a disc drive
US4006394A Coarse and fine control for position servo
US4019205A Disc drive with rotary access mechanism
US3984873A Head loading and unloading assembly for a magnetic disc drive having a rotary actuator
US3886595A Actuator for a disc drive apparatus
US3922720A Carriage assembly for a magnetic disc storage drive
US3893178A Synchronization of multiple disc drives
US3891840A Low leakage current integrator
US3864740A Track following servo system
CA969652A Control for disc drive apparatus
CA965867A Control for disc drive apparatus
CA995300A Coarse and fine control for position servo
US3808486A Selective frequency compensation for a servo system
US3768083A Baseplate assembly for a disc drive
CA937642A Balance circuit for dc servos
US3742470A Memory disc pack drive having accurate read/write head positioning
US3806254A Agc servo system having error signal responsive to a non-extinguishable intensity light energy signal
US3755795A Arrival detection and data transfer control system for data
US3761905A Disc pack defect detection system