Gilbert W. Wierschke

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Littleton, CO, US

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Patents Grantslast 30 patents

Information Patent Grant
Multi-car elevator hoistway separation assurance
- Patent number 9,010,499
- Issue date Apr 21, 2015
- Otis Elevator Company
- Richard C. McCarthy
- B66 - HOISTING LIFTING HAULING
Information Patent Grant
Concrete elevator rail and guidance system
- Patent number 6,578,673
- Issue date Jun 17, 2003
- Otis Elevator Company
- Frederick H. Barker
- B66 - HOISTING LIFTING HAULING
Information Patent Grant
Integrated, multi-level elevator shuttle
- Patent number 5,924,524
- Issue date Jul 20, 1999
- Otis Elevator Company
- Frederick H. Barker
- B66 - HOISTING LIFTING HAULING
Information Patent Grant
Shuttle elevators feeding local elevators
- Patent number 5,823,299
- Issue date Oct 20, 1998
- Otis Elevator Company
- Gilbert W. Wierschke
- B66 - HOISTING LIFTING HAULING
Information Patent Grant
Extra deck elevator shuttle
- Patent number 5,749,441
- Issue date May 12, 1998
- Otis Elevator Company
- Joseph Bittar
- B66 - HOISTING LIFTING HAULING
Information Patent Grant
Car operated safety gate for horizontally transferrable elevator cab
- Patent number 5,695,024
- Issue date Dec 9, 1997
- Otis Elevator Company
- Samuel C. Wan
- B66 - HOISTING LIFTING HAULING

Patents Applicationslast 30 patents

Information Patent Application
MULTI-CAR ELEVATOR HOISTWAY SEPARATION ASSURANCE
- Publication number 20090194371
- Publication date Aug 6, 2009
- Richard C. McCarthy
- B66 - HOISTING LIFTING HAULING
Information Patent Application
CONCRETE ELEVATOR RAIL AND GUIDANCE SYSTEM
- Publication number 20020074192
- Publication date Jun 20, 2002
- FREDERICK H. BARKER
- E04 - BUILDING