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CHALMERS CHARLES E

Overview
  • Total Patents
    17
About

CHALMERS CHARLES E has a total of 17 patent applications. Its first patent ever was published in 1923. It filed its patents most often in Canada and United States. Its main competitors in its focus markets control are MITSCHELE FREDERICK L, CALE IND AB and KRYGLER AGENOR.

Patent filings in countries

World map showing CHALMERS CHARLES Es patent filings in countries
# Country Total Patents
#1 Canada 9
#2 United States 8

Patent filings per year

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

Focus industries

# Industry
#1 Control

Focus technologies

# Technology
#1 Ticket-issuing devices
#2 Coin-freed

Top inventors

# Name Total Patents
#1 Chalmers Charles E 17

Latest patents

Publication Filing date Title
US1801801A Multiple-fare-collecting and change-making machine
US1801800A Ticket-dispensing machine
US1807196A Multiple fare collecting and change making machine
US1801798A Change-making machine
US1801795A Change-making machine
US1775118A Change-making machine
US1801793A Change-making machine
US1801794A Multiple-change-making machine
CA313611A Fare collecting machine
CA312464A Change making machine
CA313608A Multiple change making machine
CA313609A Change making machine
CA313606A Change making machine
CA313612A Change making machine
CA313607A Change making machine
CA313610A Change making machine
CA312465A Ticket dispensing machine