Learn more

AMERICAN TOOL & MACHINE CO

Overview
  • Total Patents
    19
About

AMERICAN TOOL & MACHINE CO has a total of 19 patent applications. Its first patent ever was published in 1934. It filed its patents most often in United States. Its main competitors in its focus markets machines, mechanical elements and electrical machinery and energy are TILETECH LTD, HANLAB CORP and PERSOONS JULES.

Patent filings in countries

World map showing AMERICAN TOOL & MACHINE COs patent filings in countries
# Country Total Patents
#1 United States 19

Patent filings per year

Chart showing AMERICAN TOOL & MACHINE COs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Tholl John F 10
#2 Tholl John E 8
#3 Edward Tholl John 1

Latest patents

Publication Filing date Title
US2591317A Safety mechanism for centrifugal separators
US2597405A Combined bearing and stabilizing mechanism for centrifugal separators
US2498314A Controlling mechanism for centrifugal separators
US2551980A Driving mechanism for centrifugal separators
US2544367A Centrifugal separator
US2485466A Centrifugal separator
US2485465A Discharger for centrifugal separators
US2358779A Centrifugal separator
US2396622A Centrifugal separator
US2384784A Centrifugal separator
US2242713A Skimmer for centrifugal seprators
US2312505A Driving mechanism for centrifugal separators
US2176440A Centrifugal separator
US2195710A Centrifugal separator
US2112430A Double drive for centrifugal separators
US2130205A Centrifugal basket
US2120139A Centrifugal separator
US2087848A Centrifugal separator
US2063472A Centrifugal separator