David Crenella

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Berlin, CT, US

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Patents Grantslast 30 patents

Information Patent Grant
Wireless elevator hall fixtures integral with hall door frame
- Patent number 8,356,698
- Issue date Jan 22, 2013
- Otis Elevator Company
- Bruce Zepke
- B66 - HOISTING LIFTING HAULING
Information Patent Grant
Two-part wireless communications system for elevator hallway fixtures
- Patent number 6,601,679
- Issue date Aug 5, 2003
- Otis Elevator Company
- David Crenella
- B66 - HOISTING LIFTING HAULING
Information Patent Grant
Remote elevator call requests with descriptor tags
- Patent number 5,984,051
- Issue date Nov 16, 1999
- Otis Elevator Company
- Robert G. Morgan
- B66 - HOISTING LIFTING HAULING

Patents Applicationslast 30 patents

Information Patent Application
WIRELESS ELEVATOR HALL FIXTURES INTEGRAL WITH HALL DOOR FRAME
- Publication number 20100294599
- Publication date Nov 25, 2010
- Otis Elevator Company
- Bruce Zepke
- B66 - HOISTING LIFTING HAULING
Information Patent Application
Two-part wireless communications system for elevator hallway fixtures
- Publication number 20030047390
- Publication date Mar 13, 2003
- OTIS ELEVATOR COMPANY
- David Crenella
- B66 - HOISTING LIFTING HAULING