Learn more

SPERRY RAND LTD

Overview
  • Total Patents
    373
About

SPERRY RAND LTD has a total of 373 patent applications. Its first patent ever was published in 1958. It filed its patents most often in United Kingdom, Germany and United States. Its main competitors in its focus markets mechanical elements, machines and measurement are HYDROLUX SARL, RAYMOND ROBERT E and PABOTSUTO GIKEN KK.

Patent filings in countries

World map showing SPERRY RAND LTDs patent filings in countries

Patent filings per year

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

Top inventors

# Name Total Patents
#1 Walters Ronald Bernard 17
#2 Walters Ronald 14
#3 Towner Frank Richard 13
#4 Meston Spencer Davidson 9
#5 Levy Joseph Peppo 7
#6 Hamey Peter Michael 7
#7 Hammond John Anthony Gordon 7
#8 Maxwell David James 7
#9 Marshall John Stephen 6
#10 Curtis Norman 6

Latest patents

Publication Filing date Title
JPS57170581A Seal and method of forming same
GB2034244A Agricultural balers
GB2029316A Agricultural harvesting machines with crop pick-up mechanisms
GB2057736A Supervising means for and a method of monitoring the accuracy of an assembly process
GB2022028A Agricultural balers
GB2022011A Agricultural balers
GB2020938A Collision avoidance apparatus
GB2011575A Locking devices
GB2006880A Thrust Engine Systems
US4246549A Magneto-optical phase-modulating devices
GB2006456A Magneto-optical phase modulatiing devices
IT7850950D0 Hydraulic servo system for machine tool - utilises Bernoulli effect force on valve piston to maintain constant output velocity
GB2028980A Solid propellant charges
GB2002622A Disc mowers
GB2025532A Fuelsystems for gas generators
US4163325A Verticality sensors
DE2816144A1 Mower-conditioner with drum mower - has gear box with output delivered to drums by belt and to conditioner by shaft
DE2812731A1 Sedimentation system for hydraulic fluids - having honeycomb structure cells to aid settlement
GB1523956A Underwater power supply using propellant
US4062374A Hydraulic valves and hydraulic systems