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SECURITY FIRE DOOR COMPANY

Overview
  • Total Patents
    14
About

SECURITY FIRE DOOR COMPANY has a total of 14 patent applications. Its first patent ever was published in 1930. It filed its patents most often in United States and Canada. Its main competitors in its focus markets packaging and shipping, civil engineering and machines are ELEVATOR SUPPLIES CO INC, EDGAR ZABRISKIE and WITTUR SPA.

Patent filings in countries

World map showing SECURITY FIRE DOOR COMPANYs patent filings in countries
# Country Total Patents
#1 United States 13
#2 Canada 1

Patent filings per year

Chart showing SECURITY FIRE DOOR COMPANYs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Talen Mauritz W 7
#2 Schweig Malvern A 4
#3 Schweig Julius A 3
#4 Brockmeyer Bernard J 1

Latest patents

Publication Filing date Title
US3330923A Safety edge mechanism for doors
US2937867A Elevator door control
US2960188A Elevator door control mechanism
US2579017A Elevator door control mechanism
US2482639A Elevator shaft door
US2624081A Elevator shaft door
US2148310A Guide shoe for elevator doors
US1932199A Door operating mechanism
US1909024A Door operating mechanism
US1921849A Door operating mechanism
US1932198A Door operating mechanism
US1927559A Elevator door operating mechanism
US1864959A Elevator door operating mechanism
CA647735A Elevator door control mechanism