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J B EHRSAM & SONS MFG COMPANY

Overview
  • Total Patents
    23
About

J B EHRSAM & SONS MFG COMPANY has a total of 23 patent applications. Its first patent ever was published in 1912. It filed its patents most often in United States and United Kingdom. Its main competitors in its focus markets packaging and shipping, machines and machine tools are LINGL CORP, SIPOREX FRANCAIS SARL and BALBINOT ETS.

Patent filings in countries

World map showing J B EHRSAM & SONS MFG COMPANYs patent filings in countries
# Country Total Patents
#1 United States 22
#2 United Kingdom 1

Patent filings per year

Chart showing J B EHRSAM & SONS MFG COMPANYs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Rosenleaf John R 7
#2 Hugh Kelley 3
#3 Benham Emmett D 3
#4 Kelley Hugh D 3
#5 Connell Willard B 2
#6 Ehrsam William J 2
#7 Jones Jr Harry W 1
#8 Wickam Erwin E 1
#9 Guy Prichard Jr 1
#10 John Oberauer 1

Latest patents

Publication Filing date Title
US3289811A Registry maintenance for stackedboard transfer
US3220538A Mounting for belt-troughing idlers
US3156429A Water ski tow rope retriever
US3195287A Board bundler
US3127974A Green board inverter and transfer machine
US3109560A Live bottom hopper feeder
US3096212A Blender belt
US3118652A Truck lift safety shut-off
US3075660A Vehicle dumping apparatus
US3061073A Conveyor for fluent material
US3074530A Board inverter
US3023035A Hub mounting means
US2956779A Power-scoop pulling mechanism
US2945462A Splicing machine and method
US2814397A Bundling machine
US2784831A Automatic inverter
GB569967A Improvements in or relating to cut-off machines
US2345072A Cutoff machine tripping mechanism
US2288922A Cutoff machine adjustment
US2228162A Machine for perforating plasterboard