Derwinski; Patricia A.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Derwinski; Patricia A..The latest application filed is for "elevator car assembly having an adjustable platform".
- Derwinski; Patricia A. - Farmington CT
| Patent | Date |
|---|---|
| Elevator car assembly having an adjustable platform Grant 7,810,611 - Zeng , et al. October 12, 2 | 2010-10-12 |
| Elevator belt assembly with noise reducing groove arrangement Grant 7,670,240 - Pitts , et al. March 2, 2 | 2010-03-02 |
| Elevator car assembly having an adjustable platform App 20070089936 - Zeng; Qingian ; et al. | 2007-04-26 |
| Elevator belt assembly with noise reducing groove arrangement App 20030069101 - Pitts, John ; et al. | 2003-04-10 |
| Sound absorbing light fixture Grant 6,367,581 - Marler , et al. April 9, 2 | 2002-04-09 |
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