TREA

Space-saving stairways

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  • CPC
  • E04F11/0201
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Parent Industries

EFIXED CONSTRUCTIONS E04Building E04FFINISHING WORK ON BUILDINGS E04F11/00Stairways, ramps, or like structures Balustrades Handrails

Current Industry

E04F11/0201Space-saving stairways
Industries

Patents Grantslast 30 patents

  • Information Patent Grant

    Splicing step device
    • Patent number 11,993,936
    • Issue date May 28, 2024
    • Hongfang Shen
    • E04 - BUILDING
  • Information Patent Grant

    Adjustable step system
    • Patent number 11,946,258
    • Issue date Apr 2, 2024
    • Leonard Sokola
    • E04 - BUILDING
  • Information Patent Grant

    Freestanding modular spiral staircase
    • Patent number 11,629,500
    • Issue date Apr 18, 2023
    • Dale Pocius
    • E04 - BUILDING
  • Information Patent Grant

    Modular pet step sections for staircase
    • Patent number 11,406,083
    • Issue date Aug 9, 2022
    • Edward Jude Jennings
    • E04 - BUILDING
  • Information Patent Grant

    Hydraulic elevating platform having no guide rails and elevating me...
    • Patent number 10,399,822
    • Issue date Sep 3, 2019
    • Dongnan Elevator Co., Ltd.
    • Zhencai Zhu
    • B66 - HOISTING LIFTING HAULING
  • Information Patent Grant

    Kit of parts for modular staircase
    • Patent number 10,214,912
    • Issue date Feb 26, 2019
    • Lograr Group Limited
    • Benjamin Lance Catt
    • A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING
  • Information Patent Grant

    Vertical stair
    • Patent number 9,115,499
    • Issue date Aug 25, 2015
    • ESPERIRE S.R.L.
    • Umberto Ernesto Bonetti
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Free standing step with user customizable height and flat expanding...
    • Patent number 7,686,138
    • Issue date Mar 30, 2010
    • Helene Schmidt
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Grant

    Stairway step assembly
    • Patent number 5,924,249
    • Issue date Jul 20, 1999
    • Protector Car, Inc.
    • William P Kroll
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Grant

    Stairway step assembly
    • Patent number 5,664,379
    • Issue date Sep 9, 1997
    • Protector Care, Inc.
    • William P. Kroll
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Grant

    Stair climbing aid
    • Patent number 5,355,904
    • Issue date Oct 18, 1994
    • Ronald I. Wallum
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Grant

    Half-step stability cane
    • Patent number 5,318,057
    • Issue date Jun 7, 1994
    • Ronald I. Wallum
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Grant

    Staircase cabinet
    • Patent number 5,239,796
    • Issue date Aug 31, 1993
    • Timothy J. Maloney
    • E04 - BUILDING
  • Information Patent Grant

    Ladder apparatus and hinge system therefor
    • Patent number 5,125,476
    • Issue date Jun 30, 1992
    • Harry G. Merrick
    • E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS
  • Information Patent Grant

    Alternating tread ladder apparatus
    • Patent number 4,981,195
    • Issue date Jan 1, 1991
    • Harry G. Merrick
    • E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS
  • Information Patent Grant

    Stair climbing aid
    • Patent number 4,844,199
    • Issue date Jul 4, 1989
    • Floyd E. Nimz
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Grant

    Recessed mortise stair
    • Patent number 4,627,200
    • Issue date Dec 9, 1986
    • The Laitram Corporation
    • James M. Lapeyre
    • E04 - BUILDING
  • Information Patent Grant

    Unitary stairway
    • Patent number 4,535,871
    • Issue date Aug 20, 1985
    • The Laitram Corporation
    • James M. Lapeyre
    • E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS
  • Information Patent Grant

    Stair having alternate half treads
    • Patent number 4,509,617
    • Issue date Apr 9, 1985
    • The Laitram Corporation
    • James M. Lapeyre
    • E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS
  • Information Patent Grant

    Circular ladder
    • Patent number 4,328,880
    • Issue date May 11, 1982
    • The Laitram Corporation
    • James M. Lapeyre
    • E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS
  • Information Patent Grant

    Ship ladder
    • Patent number 4,199,040
    • Issue date Apr 22, 1980
    • The Laitram Corporation
    • James M. Lapeyre
    • B63 - SHIPS OR OTHER WATERBORNE VESSELS RELATED EQUIPMENT
  • Information Patent Grant

    Staircase with small base area
    • Patent number 4,125,175
    • Issue date Nov 14, 1978
    • Herbert Ernst
    • E04 - BUILDING
  • Information Patent Grant

    3686806
    • Patent number 3,686,806
    • Issue date Aug 29, 1972
    • E04 - BUILDING
  • Information Patent Grant

    2206862
    • Patent number 2,206,862
    • Issue date Jul 9, 1940
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Grant

    858199
    • Patent number 858,199
    • Issue date Jun 25, 1907
    • E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS
  • Information Patent Grant

    71049
    • Patent number 71,049
    • Issue date Nov 19, 1867
    • E04 - BUILDING

Patents Applicationslast 30 patents