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ROBERTS CHARLES E

Overview
  • Total Patents
    17
About

ROBERTS CHARLES E has a total of 17 patent applications. Its first patent ever was published in 1900. It filed its patents most often in United States and Canada. Its main competitors in its focus markets machines, machine tools and transport are VENDMATIC OY, PARSONS HENRY and BEANEY RUBBER COMPANY INC.

Patent filings in countries

World map showing ROBERTS CHARLES Es patent filings in countries
# Country Total Patents
#1 United States 14
#2 Canada 3

Patent filings per year

Chart showing ROBERTS CHARLES Es patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Roberts Charles E 17
#2 Roberts Owen W 4
#3 Pearson Walter Beverley 1

Latest patents

Publication Filing date Title
US3153229A Digital actuator and direct digital transducer employing same
US3102607A Carrier system for transport and delivery along a trackway
US1356740A Machine for breaking and scutching hemp or other fibrous material
CA187629A Dandelion rake
US1336861A Dandelion-rake
US1236605A Actuating means for operating washing-machines.
US875739A Machine for cutting butter, &c.
US875738A Machine for cutting butter, &c.
US875737A Machine for cutting butter or the like material.
US841818A Machine for cutting butter or the like material.
CA84786A Process of severing metal bars
US748016A Vehicle-brake.
US748015A Automobile.
US698557A Ball-bearing.
US664435A Spoke-swaging machine.
US1128050A Power mechanism for washing-machines.
CA472063A Portable power saws