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TOLHURST MACHINE WORKS

Overview
  • Total Patents
    27
About

TOLHURST MACHINE WORKS has a total of 27 patent applications. Its first patent ever was published in 1908. It filed its patents most often in United States and Canada. Its main competitors in its focus markets machines, mechanical elements and consumer goods are MEER GUSTAV TER, TILETECH LTD and AMERICAN TOOL & MACHINE CO.

Patent filings in countries

World map showing TOLHURST MACHINE WORKSs patent filings in countries
# Country Total Patents
#1 United States 22
#2 Canada 5

Patent filings per year

Chart showing TOLHURST MACHINE WORKSs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Bryson Tandy A 19
#2 Croasdale Edgar 2
#3 Mckeon John J 2
#4 Humphrey Evans 1
#5 Vincent Edgar W 1
#6 Tolhurst Frederick A 1
#7 Williams Frank I 1
#8 Scovill James P 1
#9 Gage John S 1

Latest patents

Publication Filing date Title
US1587064A Centrifugal nut lock
US1640978A Centrifugal extractor
US1649947A Safety guard for centrifugal machines
US1575316A Safety guard for centrifugal extractors
US1638239A Driving mechanism and method
US1575325A Automatic guard for centrifugal extractors
US1507413A Centrifugal machine
US1481502A Centrifugal machine
US1507412A Centrifugal machine
US1636177A Centrifugal drying machine
US1434770A Ventilated driving mechanism
US1388487A Tobacco-stemming machine
US1280153A Centrifugal process.
US1331692A Centrifugal machine
US1385982A Centrifugal machine
US1235548A Thrust-bearing for centrifugal machines.
US1298451A Centrifugal machine.
US1273817A Centrifugal drying-machine.
US1160373A Closure for centrifugal machines.
US1043742A Fabric-shrinking machine.