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Tian Zhou
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Littau, CH
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Patents Grants
last 30 patents
Information
Patent Grant
Clutch for coupling a car door of an elevator car with a landing do...
Patent number
7,255,203
Issue date
Aug 14, 2007
Inventio AG
Jean-Marie Rennetaud
B66 - HOISTING LIFTING HAULING
Information
Patent Grant
Door suspension apparatus
Patent number
7,013,605
Issue date
Mar 21, 2006
Inventio AG
Tian Zhou
E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information
Patent Grant
Door suspension system
Patent number
6,832,449
Issue date
Dec 21, 2004
Inventio AG
Jean-Marie Rennetaud
E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information
Patent Grant
Drive system for lifts
Patent number
5,751,076
Issue date
May 12, 1998
Inventio AG
Tian Zhou
B66 - HOISTING LIFTING HAULING
Patents Applications
last 30 patents
Information
Patent Application
Clutch for coupling a car door of an elevator car with a landing do...
Publication number
20050126860
Publication date
Jun 16, 2005
Jean-Marie Rennetaud
B66 - HOISTING LIFTING HAULING
Information
Patent Application
Electric motor, elevator with a car movable by an electric motor, a...
Publication number
20050087400
Publication date
Apr 28, 2005
Tian Zhou
B66 - HOISTING LIFTING HAULING
Information
Patent Application
Elevator with a scissor lift assembly and a central drive mechanism
Publication number
20050045428
Publication date
Mar 3, 2005
Jean-Marie Rennetaud
B66 - HOISTING LIFTING HAULING
Information
Patent Application
Method for making and installing an elevator with a scissor lift me...
Publication number
20050045427
Publication date
Mar 3, 2005
Jean-Marie Rennetaud
B66 - HOISTING LIFTING HAULING
Information
Patent Application
Elevator with a scissor lift mechanism and a spring member serving...
Publication number
20050045426
Publication date
Mar 3, 2005
Jean-Marie Rennetaud
B66 - HOISTING LIFTING HAULING
Information
Patent Application
DOOR SUSPENSION APPARATUS
Publication number
20030221374
Publication date
Dec 4, 2003
Tian Zhou
E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information
Patent Application
Door suspension system
Publication number
20030110696
Publication date
Jun 19, 2003
Jean-Marie Rennetaud
E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information
Patent Application
Door suspension apparatus
Publication number
20020112410
Publication date
Aug 22, 2002
Tian Zhou
E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES