Crenella; David
Patent Applications and Registrations
Patent applications and USPTO patent grants for Crenella; David.The latest application filed is for "wireless elevator hall fixtures integral with hall door frame".
- Crenella; David - Berlin CT US
| Patent | Date |
|---|---|
| Wireless elevator hall fixtures integral with hall door frame Grant 8,356,698 - Zepke , et al. January 22, 2 | 2013-01-22 |
| Wireless Elevator Hall Fixtures Integral With Hall Door Frame App 20100294599 - Zepke; Bruce ; et al. | 2010-11-25 |
| Method and apparatus for providing both power and communication over two wires between multiple low voltage AC devices Grant 6,956,463 - Crenella , et al. October 18, 2 | 2005-10-18 |
| Method and apparatus for providing both power and communication over two wires between multiple low voltage AC devices App 20040066245 - Crenella, David ; et al. | 2004-04-08 |
| Two-part wireless communications system for elevator hallway fixtures Grant 6,601,679 - Crenella , et al. August 5, 2 | 2003-08-05 |
| Two-part wireless communications system for elevator hallway fixtures App 20030047390 - Crenella, David ; et al. | 2003-03-13 |
| Remote elevator call requests with descriptor tags Grant 5,984,051 - Morgan , et al. November 16, 1 | 1999-11-16 |
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