Spain; David S.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Spain; David S..The latest application filed is for "location determination using rf fingerprints".
- Spain; David S. - Portola Valley CA
| Patent | Date |
|---|---|
| Location determination using RF fingerprinting Grant 7,725,111 - Dressler , et al. May 25, 2 | 2010-05-25 |
| Location determination using RF fingerprints App 20050037776 - Perez-Breva, Luis ; et al. | 2005-02-17 |
| Location determination using RF fingerprints App 20040259575 - Perez-Breva, Luis ; et al. | 2004-12-23 |
| Location determination using RF fingerprinting Grant 6,782,265 - Perez-Breva , et al. August 24, 2 | 2004-08-24 |
| Location determination using RF fingerprinting App 20030008668 - Perez-Breva, Luis ; et al. | 2003-01-09 |
| Location determination using RF fingerprinting Grant 6,393,294 - Perez-Breva , et al. May 21, 2 | 2002-05-21 |
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