electrical

Patents Grantslast 30 patents

  • Information Patent Grant

    Elevator car door control system

    • Patent number 11,772,937
    • Issue date Oct 3, 2023
    • G.A.L. Manufacturing Company, LLC
    • Charles MacKenzie-Smith
    • B66 - HOISTING LIFTING HAULING
  • Information Patent Grant

    Automated elevator safety chain diagnosis

    • Patent number 11,390,487
    • Issue date Jul 19, 2022
    • Otis Elevator Company
    • Michael J. Tracey
    • B66 - HOISTING LIFTING HAULING
  • Information Patent Grant

    Hoistway door locking system and method of controlling access to an...

    • Patent number 10,221,044
    • Issue date Mar 5, 2019
    • Otis Elevator Company
    • Nicolas Fonteneau
    • B66 - HOISTING LIFTING HAULING
  • Information Patent Grant

    Elevator car door interlock

    • Patent number 8,960,372
    • Issue date Feb 24, 2015
    • ThyssenKrupp Elevator Corporation
    • Ernest Heath
    • B66 - HOISTING LIFTING HAULING
  • Information Patent Grant

    Electromechanical door locks for lifts

    • Patent number 8,424,934
    • Issue date Apr 23, 2013
    • Tim Askins
    • B66 - HOISTING LIFTING HAULING
  • Information Patent Grant

    Electromagnetically operated elevator door lock

    • Patent number 7,823,699
    • Issue date Nov 2, 2010
    • Otis Elevator Company
    • Jacek F. Gieras
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
  • Information Patent Grant

    Elevator door interlock

    • Patent number 7,549,516
    • Issue date Jun 23, 2009
    • Honeywell International Inc.
    • Gary W Eisenhower, Jr.
    • B66 - HOISTING LIFTING HAULING
  • Information Patent Grant

    Swinging elevator hatchway door interlock

    • Patent number 6,659,514
    • Issue date Dec 9, 2003
    • Thyssen Elevator Capital Corp.
    • Patrick M. Bass
    • B66 - HOISTING LIFTING HAULING
  • Information Patent Grant

    Elevator interlocking mechanism

    • Patent number 6,062,345
    • Issue date May 16, 2000
    • Alimak AB
    • Mats Olofsson
    • B66 - HOISTING LIFTING HAULING
  • Information Patent Grant

    Elevator door restrictor

    • Patent number 6,006,866
    • Issue date Dec 28, 1999
    • Advanced Microcontrols, Inc.
    • Gregory L. Horne
    • B66 - HOISTING LIFTING HAULING
  • Information Patent Grant

    Building elevator door restrictor

    • Patent number 5,918,705
    • Issue date Jul 6, 1999
    • Jeff Friend
    • B66 - HOISTING LIFTING HAULING
  • Information Patent Grant

    Elevator door restrictor

    • Patent number 5,896,953
    • Issue date Apr 27, 1999
    • Advanced Microcontrols, Inc.
    • Gregory L. Horne
    • B66 - HOISTING LIFTING HAULING
  • Information Patent Grant

    Car door locking system

    • Patent number 5,894,911
    • Issue date Apr 20, 1999
    • Otis Elevator Company
    • Ali Bozorgzadeh
    • B66 - HOISTING LIFTING HAULING
  • Information Patent Grant

    Elevator hoistway door bolt lock

    • Patent number 5,669,465
    • Issue date Sep 23, 1997
    • Otis Elevator Company
    • Richard E. Kulak
    • B66 - HOISTING LIFTING HAULING
  • Information Patent Grant

    Elevator door restrictor

    • Patent number 5,655,627
    • Issue date Aug 12, 1997
    • Advanced Microcontrols, Inc.
    • Gregory L. Horne
    • B66 - HOISTING LIFTING HAULING
  • Information Patent Grant

    Elevator hoistway door bolt lock

    • Patent number 5,454,447
    • Issue date Oct 3, 1995
    • Otis Elevator Company
    • Richard E. Kulak
    • B66 - HOISTING LIFTING HAULING
  • Information Patent Grant

    Lock system for an automatic door

    • Patent number 4,935,677
    • Issue date Jun 19, 1990
    • Yoshida Kogyo K. K.
    • Yukio Yoshida
    • B66 - HOISTING LIFTING HAULING
  • Information Patent Grant

    Magnetically actuated locking system for elevator doors

    • Patent number 4,009,767
    • Issue date Mar 1, 1977
    • Linden-Alimak AB
    • Hans-Goran Stadigh
    • B66 - HOISTING LIFTING HAULING
  • Information Patent Grant

    3200905

    • Patent number 3,200,905
    • Issue date Aug 17, 1965
    • B66 - HOISTING LIFTING HAULING
  • Information Patent Grant

    1462264

    • Patent number 1,462,264
    • Issue date Jul 17, 1923
    • B66 - HOISTING LIFTING HAULING
  • Information Patent Grant

    1236980

    • Patent number 1,236,980
    • Issue date Aug 14, 1917
    • B66 - HOISTING LIFTING HAULING
  • Information Patent Grant

    1209637

    • Patent number 1,209,637
    • Issue date Dec 19, 1916
    • B66 - HOISTING LIFTING HAULING
  • Information Patent Grant

    1188106

    • Patent number 1,188,106
    • Issue date Jun 20, 1916
    • B66 - HOISTING LIFTING HAULING
  • Information Patent Grant

    1119001

    • Patent number 1,119,001
    • Issue date Dec 1, 1914
    • B66 - HOISTING LIFTING HAULING
  • Information Patent Grant

    1009774

    • Patent number 1,009,774
    • Issue date Nov 28, 1911
    • B66 - HOISTING LIFTING HAULING
  • Information Patent Grant

    978377

    • Patent number 978,377
    • Issue date Dec 13, 1910
    • B66 - HOISTING LIFTING HAULING
  • Information Patent Grant

    963570

    • Patent number 963,570
    • Issue date Jul 5, 1910
    • B66 - HOISTING LIFTING HAULING
  • Information Patent Grant

    725132

    • Patent number 725,132
    • Issue date Apr 14, 1903
    • B66 - HOISTING LIFTING HAULING
  • Information Patent Grant

    719692

    • Patent number 719,692
    • Issue date Feb 3, 1903
    • B66 - HOISTING LIFTING HAULING
  • Information Patent Grant

    687775

    • Patent number 687,775
    • Issue date Dec 3, 1901
    • B66 - HOISTING LIFTING HAULING

Patents Applicationslast 30 patents