Piepel; Andrew J.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Piepel; Andrew J..The latest application filed is for "projection screen".
- Piepel; Andrew J. - Hudson WI
| Patent | Date |
|---|---|
| Projection Screen App 20100245995 - Graetz; Michael L. ; et al. | 2010-09-30 |
| Screens and methods for displaying information Grant 6,870,670 - Gehring , et al. March 22, 2 | 2005-03-22 |
| Screens and methods for displaying information App 20030163367 - Piepel, Andrew J. ; et al. | 2003-08-28 |
| Optical system with reduced color shift Grant 6,535,333 - Piepel , et al. March 18, 2 | 2003-03-18 |
| Temporary screens and methods for displaying information App 20020163720 - Piepel, Andrew J. ; et al. | 2002-11-07 |
| Screens and methods for displaying information App 20020163722 - Gehring, Thomas R. ; et al. | 2002-11-07 |
| Rear projection screen with reduced speckle Grant 6,466,368 - Piepel , et al. October 15, 2 | 2002-10-15 |
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