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HANNAH JANE HAPMAN

Overview
  • Total Patents
    28
About

HANNAH JANE HAPMAN has a total of 28 patent applications. Its first patent ever was published in 1945. It filed its patents most often in United States and United Kingdom. Its main competitors in its focus markets packaging and shipping, chemical engineering and machines are AIR CONTROL SCIENCE INC, HUBEI TIANYI MACHINERY CO LTD and KOEHLER & BOVENKAMP.

Patent filings in countries

World map showing HANNAH JANE HAPMANs patent filings in countries
# Country Total Patents
#1 United States 26
#2 United Kingdom 2

Patent filings per year

Chart showing HANNAH JANE HAPMANs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Hapman Henry W 21
#2 Jane Hapman Hannah 4
#3 Huffaker Melvin S 4
#4 Waldemar Hapman Henry 1
#5 Huffaker Melvin Simpson 1
#6 Hapman Hannah Jane 1

Latest patents

Publication Filing date Title
GB834610A Conveying drying apparatus
GB834607A Driving unit for bucket conveyors
US2931306A Low lift method and apparatus
US2922513A Pan conveyor
US2809744A Driving unit for bucket conveyors
US2817430A Tire-driven conveying apparatus
US2747723A Bucket conveyor with protected pivot shaft
US2812924A Conveying drying apparatus
US2812849A Flow-regulating conduit device
US2667962A Flight conveyer with flanged clamping disks
US2702625A Bucket conveyer system
US2671561A Sediment collection and removal apparatus
US2660310A Sediment removal apparatus
US2722315A Rotatable filtering apparatus
US2680511A Sanitary flight conveyer
US2738887A Boom conveyor apparatus
US2609081A Flight conveyer
US2624474A Granulated material feeding apparatus
US2559616A Pressure-sealing apparatus for flight conveyers
US2692067A Conveyer apparatus