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HOOF PRODUCTS COMPANY

Overview
  • Total Patents
    22
About

HOOF PRODUCTS COMPANY has a total of 22 patent applications. Its first patent ever was published in 1936. It filed its patents most often in United States, Canada and United Kingdom. Its main competitors in its focus markets engines, pumps and turbines, machines and control are DUPLEX ENGINE GOVERNOR COMPANY, PIERCE GOVERNOR COMPANY INC and LEIBING AUTOMOTIVE DEVICES INC.

Patent filings in countries

World map showing HOOF PRODUCTS COMPANYs patent filings in countries
# Country Total Patents
#1 United States 16
#2 Canada 3
#3 United Kingdom 3

Patent filings per year

Chart showing HOOF PRODUCTS COMPANYs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Seymour Clayton B 7
#2 Jennings Jarvis S 5
#3 Aitken Leon L 2
#4 Trich Henry C 2
#5 Altenberg Alfons A 1
#6 Jennings Jarvis Slade 1
#7 Hoof Addison C 1
#8 Walter Eckert 1
#9 Handy Robert G 1
#10 Hoof Frances A 1

Latest patents

Publication Filing date Title
US3064992A Utility carts with article supporting racks
GB815599A Improved centrifugal governor with adjustable operating lever
GB811786A Improved roller flyweight governor
US2880984A Spring adjustment assembly for engine regulator
US2926901A Roller flyweight governor
GB702951A Improved variable speed centrifugal governor for internal combustion engines
US2646269A Variable speed centrifugal governor for internal-combustion engines and the like
US2445715A Crankcase compression, two-cycle engine
US2372408A Pressure snubber
US2381528A Valve for hydraulic control systems
US2403689A Fluid lockout device
US2417494A Valve end seal
US2375498A Fluid lockout device
US2265117A Hydraulic brake lockout device
US2272386A Attachment for carburetors
US2229822A Vacuum spark advance
US2229821A Automatic spark control
US2230311A Fuel economizer for automotive engines
US2182519A Combined governor torque testing and spring calibrating and testing device
CA497196A Variable speed centrifugal governors for internal combustion engines and the like