Barr; John M.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Barr; John M..The latest application filed is for "methods and systems for estimating length of queues based on location data from mobile devices".
- Barr; John M. - Courtice CA
- Barr; John M. - Rolla MO
| Patent | Date |
|---|---|
| Methods And Systems For Estimating Length Of Queues Based On Location Data From Mobile Devices App 20150186957 - Barr; John M. ; et al. | 2015-07-02 |
| Optically transparent composite material and process for preparing same Grant 5,665,450 - Day , et al. September 9, 1 | 1997-09-09 |
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