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HAPMAN HENRY W

Overview
  • Total Patents
    26
About

HAPMAN HENRY W has a total of 26 patent applications. Its first patent ever was published in 1936. It filed its patents most often in United States, Germany and Canada. Its main competitors in its focus markets packaging and shipping, machines and mechanical elements are ANGUS WELLESLEY DUNCAN, CAMPBELL DAVID R and GAERTNER FRANZ.

Patent filings in countries

World map showing HAPMAN HENRY Ws patent filings in countries
# Country Total Patents
#1 United States 23
#2 Germany 2
#3 Canada 1

Patent filings per year

Chart showing HAPMAN HENRY Ws patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Hapman Henry W 26

Latest patents

Publication Filing date Title
US2534967A Exercising stand for bicycles
US2699558A Area support for beds
US2433274A Trolley conveyor of the bucket type
US2432756A Sludge tank having a u-shaped conduit having arm portions inclined downward to the lower part of said tank and a conduit opening into said tank connecting said portions
US2429549A Flight conveyer
US2426304A Bucket conveyor system
US2400502A Conveyer flight
US2391700A Resilient flight conveyer
US2357796A Flight conveyer
US2357651A Conveyer propelling device
US2333926A Conveyer
US2326535A Conveyer
US2288450A Accelerator device
US2245073A Conveyer-elevator
US2287378A Flight conveyer
US2226609A Massage apparatus
US2235992A Flight conveyer and elevator
US2235991A Sprocket wheel for chain conveyers and the like
US2178342A Universal conveyer
US2178341A Chain conveyer