Spiral stairways supported by a central column

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CPC
E04F11/032

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Parent Industries

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

Current Industry

E04F11/032Spiral stairways supported by a central column

Industries

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Patents Grantslast 30 patents

Information Patent Grant
Elevating apparatus based on hetero-oriented, non-isometric, dual-s...
- Patent number 11,939,190
- Issue date Mar 26, 2024
- TAIZHOU UNIVERSITY
- Xiangdong Kong
- 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
Lifeguard observation station
- Patent number 11,585,108
- Issue date Feb 21, 2023
- Aqua Conscience Holdings LLC
- Bartley J. Eckhardt
- E04 - BUILDING
Information Patent Grant
Vertical flood escape structure
- Patent number 11,560,731
- Issue date Jan 24, 2023
- The Government of the United States of America, as represented by the Secreta...
- Jeffrey B. Barber
- E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
Information Patent Grant
Actuatable assemblies
- Patent number 11,466,461
- Issue date Oct 11, 2022
- Luis Jones
- E04 - BUILDING
Information Patent Grant
Tread mounting system for spiral staircase
- Patent number 10,487,514
- Issue date Nov 26, 2019
- Safe Rack LLC
- John Rutledge Lawson
- E04 - BUILDING
Information Patent Grant
Spacer for prefabricated spiral staircase and prefabricated spiral...
- Patent number 10,407,914
- Issue date Sep 10, 2019
- Seonghwan Seo
- E04 - BUILDING
Information Patent Grant
Tread mounting system for spiral staircase
- Patent number 10,378,212
- Issue date Aug 13, 2019
- Safe Rack LLC
- John Rutledge Lawson
- E04 - BUILDING
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
Methods and systems of preparing and installing custom-made spiral...
- Patent number 9,803,368
- Issue date Oct 31, 2017
- Paul David Stehl
- E04 - BUILDING
Information Patent Grant
Staircase element and method for building a staircase
- Patent number 9,534,395
- Issue date Jan 3, 2017
- RAKENNUS JA TEKNIIKKA HAASLAHTI OY
- Mikko Haaslahti
- E04 - BUILDING
Information Patent Grant
Modular spiral staircase assembly
- Patent number 8,281,525
- Issue date Oct 9, 2012
- Custom Iron, Inc.
- Terry L. Driscoll
- E04 - BUILDING
Information Patent Grant
Bent pole composite stairs
- Patent number 8,112,952
- Issue date Feb 14, 2012
- John D. Shepherd
- E04 - BUILDING
Information Patent Grant
Step for modular staircases and relative staircase
- Patent number 8,056,288
- Issue date Nov 15, 2011
- Albini & Fontanot S.p.A.
- Piero Denicolo'
- E04 - BUILDING
Information Patent Grant
Tread and handrail combination structure of a staircase
- Patent number 6,523,310
- Issue date Feb 25, 2003
- Taiwan Lounge Chair Industry Co., Ltd.
- Chen-Nung Tseng
- E04 - BUILDING
Information Patent Grant
Surface tread for a spiral staircase
- Patent number 6,155,007
- Issue date Dec 5, 2000
- Masaki Murase
- E04 - BUILDING
Information Patent Grant
Spiral climb in surrounding enclosure
- Patent number 6,108,988
- Issue date Aug 29, 2000
- Soft Play, L.L.C.
- Keith C. Nagelski
- E04 - BUILDING
Information Patent Grant
Spiral staircase
- Patent number 6,044,599
- Issue date Apr 4, 2000
- Walter Wachenfeld
- E04 - BUILDING
Information Patent Grant
Stair frame
- Patent number 5,983,580
- Issue date Nov 16, 1999
- M. Robert Carr
- E04 - BUILDING
Information Patent Grant
Spiral staircase and connecting metals for spiral staircase
- Patent number 5,881,509
- Issue date Mar 16, 1999
- Inafuku Construction Co., Ltd.
- Nouzen Inafuku
- E04 - BUILDING
Information Patent Grant
Spiral stair case
- Patent number 5,737,884
- Issue date Apr 14, 1998
- Wolfram Schrom
- E04 - BUILDING
Information Patent Grant
Circular stairway and method of making same
- Patent number 5,632,124
- Issue date May 27, 1997
- David M. Weingarten
- E04 - BUILDING
Information Patent Grant
Adjustable pitch spiral stairway kit
- Patent number 5,557,893
- Issue date Sep 24, 1996
- George A. Bowls
- E04 - BUILDING
Information Patent Grant
Non-laminated, self-configuring, variable pitch spiral stairset and...
- Patent number 5,535,557
- Issue date Jul 16, 1996
- Precision Pine, Inc.
- Thomas R. Garber
- E04 - BUILDING
Information Patent Grant
Winding stair
- Patent number 5,515,657
- Issue date May 14, 1996
- Johnson Chou
- E04 - BUILDING
Information Patent Grant
Stairtread with positioning and locking mechanism
- Patent number 5,088,248
- Issue date Feb 18, 1992
- Paul; Edwin H.
- Joseph P. Manna
- E04 - BUILDING
Information Patent Grant
Multi-unit stair construction and method
- Patent number 4,850,164
- Issue date Jul 25, 1989
- Duncan T. McLeod
- E04 - BUILDING
Information Patent Grant
Stair tread support
- Patent number 4,791,764
- Issue date Dec 20, 1988
- Dwain Hicks
- E04 - BUILDING
Information Patent Grant
Method for fabricating wooden circular stair with balustrade
- Patent number 4,722,374
- Issue date Feb 2, 1988
- Henry J. Bond
- E04 - BUILDING
Information Patent Grant
Spiral staircase arrangement
- Patent number 4,660,335
- Issue date Apr 28, 1987
- Siegfried Scholler
- E04 - BUILDING

Patents Applicationslast 30 patents

Information Patent Application
SPIRAL STAIRCASE
- Publication number 20230399851
- Publication date Dec 14, 2023
- Aaron Todd Francis
- E04 - BUILDING
Information Patent Application
Folding Stair with Tread Overhang
- Publication number 20230392383
- Publication date Dec 7, 2023
- Matthew Yeatman Herzl
- E04 - BUILDING
Information Patent Application
Guard Assemblies
- Publication number 20230033898
- Publication date Feb 2, 2023
- Luis Jones
- E04 - BUILDING
Information Patent Application
ELEVATING APPARATUS BASED ON HETERO-ORIENTED, NON-ISOMETRIC, DUAL-S...
- Publication number 20220332544
- Publication date Oct 20, 2022
- Taizhou University
- Xiangdong KONG
- E04 - BUILDING
Information Patent Application
INVISIBLE STAIRCASE
- Publication number 20210238860
- Publication date Aug 5, 2021
- O-CHUN TANG
- E04 - BUILDING
Information Patent Application
FREESTANDING MODULAR SPIRAL STAIRCASE
- Publication number 20210131111
- Publication date May 6, 2021
- Dale Pocius
- E04 - BUILDING
Information Patent Application
Freestanding Modular Spiral Staircase
- Publication number 20210131110
- Publication date May 6, 2021
- Dale Pocius
- E04 - BUILDING
Information Patent Application
STAIRCASE PRODUCED BY 3D PRINTING OF A CEMENTITIOUS MATERIAL
- Publication number 20200032520
- Publication date Jan 30, 2020
- VCF HABITAT IDF
- Yoan Arrondeau
- E04 - BUILDING
Information Patent Application
TREAD MOUNTING SYSTEM FOR SPIRAL STAIRCASE
- Publication number 20190360212
- Publication date Nov 28, 2019
- SAFE RACK LLC
- John Rutledge Lawson
- E04 - BUILDING
Information Patent Application
SPACER FOR PREFABRICATED SPIRAL STAIRCASE AND PREFABRICATED SPIRAL...
- Publication number 20190003186
- Publication date Jan 3, 2019
- Seonghwan SEO
- E04 - BUILDING
Information Patent Application
PREFABRICATED SPIRAL STAIRCASE
- Publication number 20170342719
- Publication date Nov 30, 2017
- Seonghwan SEO
- E04 - BUILDING
Information Patent Application
A Kit of Parts for Securing a Fixture to an Elongate Support Member...
- Publication number 20170241142
- Publication date Aug 24, 2017
- LOGRAR GROUP LIMITED
- Benjamin Lance Catt
- E04 - BUILDING
Information Patent Application
MODULAR SHELVING AND STEP ASSEMBLY
- Publication number 20160331135
- Publication date Nov 17, 2016
- Edward A. Knudson
- A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
Information Patent Application
Staircase Element and Method for Building a Staircase
- Publication number 20160319551
- Publication date Nov 3, 2016
- Rakennus ja Tekniikka Haaslahti Oy
- Mikko Haaslahti
- E04 - BUILDING
Information Patent Application
Staircase Element and Method for Building a Staircase
- Publication number 20160208495
- Publication date Jul 21, 2016
- Rakennus ja Tekniikka Haaslahti Oy
- Mikko Haaslahti
- E04 - BUILDING
Information Patent Application
Earthquake-Safe Compact Elevator System With Optional Staircase
- Publication number 20110302851
- Publication date Dec 15, 2011
- Gholam Ali Entezari
- B66 - HOISTING LIFTING HAULING
Information Patent Application
SPIRAL STAIRCASE
- Publication number 20110258946
- Publication date Oct 27, 2011
- Fausto Scherma
- E04 - BUILDING
Information Patent Application
MODULAR SPIRAL STAIRCASE ASSEMBLY
- Publication number 20110192099
- Publication date Aug 11, 2011
- CUSTOM IRON, INC.
- Terry L. DRISCOLL
- E04 - BUILDING
Information Patent Application
BENT POLE COMPOSITE STAIRS
- Publication number 20100107523
- Publication date May 6, 2010
- John D. Shepherd
- E04 - BUILDING
Information Patent Application
STEP FOR MODULAR STAIRCASES AND RELATIVE STAIRCASE
- Publication number 20090094907
- Publication date Apr 16, 2009
- ALBINI & FONTANOT S.P.A.
- Piero Denicolo
- E04 - BUILDING
Information Patent Application
Segmented spiral staircase and kit for its construction
- Publication number 20080236066
- Publication date Oct 2, 2008
- Harold E. Arnold
- E04 - BUILDING
Information Patent Application
Spiral staircase kit
- Publication number 20070000191
- Publication date Jan 4, 2007
- Harold E. Arnold
- E04 - BUILDING
Information Patent Application
Collapsible Spiral Stair
- Publication number 20050284044
- Publication date Dec 29, 2005
- Jonathan Robert Ritchie
- E04 - BUILDING

Spiral stairways supported by a central column

Industry

Parent Industries

Current Industry

Patents Grantslast 30 patents

Elevating apparatus based on hetero-oriented, non-isometric, dual-s...

Freestanding modular spiral staircase

Lifeguard observation station

Vertical flood escape structure

Actuatable assemblies

Tread mounting system for spiral staircase

Spacer for prefabricated spiral staircase and prefabricated spiral...

Tread mounting system for spiral staircase

Kit of parts for modular staircase

Methods and systems of preparing and installing custom-made spiral...

Staircase element and method for building a staircase

Modular spiral staircase assembly

Bent pole composite stairs

Step for modular staircases and relative staircase

Tread and handrail combination structure of a staircase

Surface tread for a spiral staircase

Spiral climb in surrounding enclosure

Spiral staircase

Stair frame

Spiral staircase and connecting metals for spiral staircase

Spiral stair case

Circular stairway and method of making same

Adjustable pitch spiral stairway kit

Non-laminated, self-configuring, variable pitch spiral stairset and...

Winding stair

Stairtread with positioning and locking mechanism

Multi-unit stair construction and method

Stair tread support

Method for fabricating wooden circular stair with balustrade

Spiral staircase arrangement

Patents Applicationslast 30 patents

SPIRAL STAIRCASE

Folding Stair with Tread Overhang

Guard Assemblies

ELEVATING APPARATUS BASED ON HETERO-ORIENTED, NON-ISOMETRIC, DUAL-S...

INVISIBLE STAIRCASE

FREESTANDING MODULAR SPIRAL STAIRCASE

Freestanding Modular Spiral Staircase

STAIRCASE PRODUCED BY 3D PRINTING OF A CEMENTITIOUS MATERIAL

TREAD MOUNTING SYSTEM FOR SPIRAL STAIRCASE

SPACER FOR PREFABRICATED SPIRAL STAIRCASE AND PREFABRICATED SPIRAL...

PREFABRICATED SPIRAL STAIRCASE

A Kit of Parts for Securing a Fixture to an Elongate Support Member...

MODULAR SHELVING AND STEP ASSEMBLY

Staircase Element and Method for Building a Staircase

Staircase Element and Method for Building a Staircase

Earthquake-Safe Compact Elevator System With Optional Staircase

SPIRAL STAIRCASE

MODULAR SPIRAL STAIRCASE ASSEMBLY

BENT POLE COMPOSITE STAIRS

STEP FOR MODULAR STAIRCASES AND RELATIVE STAIRCASE

Segmented spiral staircase and kit for its construction

Spiral staircase kit

Collapsible Spiral Stair