Williams; Roger B.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Williams; Roger B..The latest application filed is for "heat exchanger and method for defrosting a heat exchanger".
- Williams; Roger B. - Colville WA
- Williams; Roger B. - Lake Zurich IL
- Williams; Roger B. - Lancaster PA
| Patent | Date |
|---|---|
| Heat exchanger and method for defrosting a heat exchanger Grant 7,712,327 - Nelson , et al. May 11, 2 | 2010-05-11 |
| Heat exchanger and method for defrosting a heat exchanger App 20080229763 - Nelson; Bruce I. ; et al. | 2008-09-25 |
| Remote utility meter reading system Grant 5,801,643 - Williams , et al. September 1, 1 | 1998-09-01 |
| Stock locator system using GPS translator Grant 5,512,902 - Guthrie , et al. April 30, 1 | 1996-04-30 |
| Tangential vortex flow burner and process Grant 5,261,336 - Williams November 16, 1 | 1993-11-16 |
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