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SPERRY GYROSCOPE CO LTD

Overview
  • Total Patents
    1,138
About

SPERRY GYROSCOPE CO LTD has a total of 1,138 patent applications. Its first patent ever was published in 1911. It filed its patents most often in France, United Kingdom and United States. Its main competitors in its focus markets measurement, control and machines are MESSGERAETE BOYKOW G M B H, SPERRY GYROSCOPE CO INC and SIEMENS APP UND MASCHINEN GMBH.

Patent filings in countries

World map showing SPERRY GYROSCOPE CO LTDs patent filings in countries
# Country Total Patents
#1 France 340
#2 United Kingdom 331
#3 United States 261
#4 Canada 127
#5 Germany 67
#6 Belgium 5
#7 Spain 4
#8 Denmark 2
#9 Austria 1

Patent filings per year

Chart showing SPERRY GYROSCOPE CO LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Sperry Elmer A 46
#2 Sedgfield Hugh Brougham 43
#3 Summerlin Frederick Arthur 40
#4 Hadekel Ruben 27
#5 Glenny Arthur Philip 23
#6 Sedgfield Hugh B 21
#7 Brougham Sedgfield Hugh 18
#8 Dove Frank 17
#9 Tanner Harry L 16
#10 Philip Glenny Arthur 15

Latest patents

Publication Filing date Title
GB1098426A Aircraft flight instruments for take-off operations
DE1482874A1 Harvester
US3342213A Hydraulic apparatus
GB1076073A Electrical connections to film wire
GB1079383A Distance-moved sensitive device
GB1073308A Apparatus for measuring the speed of vehicles
GB1067791A Magnetometers
GB1062302A Improvements relating to plating processes
GB1074294A Ball resolver
GB1081792A Electrical transmission system
GB1056713A Moving scale instrument
GB1038304A Warning apparatus
GB1063779A Improvements relating to the conversion and recording of instruments readings
GB1063093A Improvements in or relating to commutators
GB1071882A Take-off director
GB1063092A Improvements in metal plating processes
GB1094107A Agricultural planting machinery
GB1029266A Electrical contacts
GB1078973A Indicating instruments
GB1007633A Hydraulic positioning apparatus