Helstern; Robert P.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Helstern; Robert P..The latest application filed is for "compact switch".
- Helstern; Robert P. - Irvine CA
- Helstern; Robert P. - Costa Mesa CA
| Patent | Date |
|---|---|
| Compact Switch App 20220122786 - Truong; Samkol ; et al. | 2022-04-21 |
| Ruggedized safety mirror having polymethylmethacrylate layers and embedded neodymium magnets Grant 10,281,620 - Helstern , et al. | 2019-05-07 |
| Ruggedized placard Grant 10,157,555 - Truong , et al. Dec | 2018-12-18 |
| Transparent screen cover Grant 9,838,606 - Truong , et al. December 5, 2 | 2017-12-05 |
| Ruggedized Placard App 20170345349 - Truong; Samkol ; et al. | 2017-11-30 |
| Transparent Screen Cover App 20170134660 - Truong; Samkol ; et al. | 2017-05-11 |
| Optical display with optical monolith Grant 8,702,249 - Helstern April 22, 2 | 2014-04-22 |
| Optical Panel Display App 20130258643 - Helstern; Robert P. ; et al. | 2013-10-03 |
| Optical Display With Optical Monolith App 20120013986 - Helstern; Robert P. | 2012-01-19 |
| Method of filtering spectral energy Grant 7,312,434 - Helstern December 25, 2 | 2007-12-25 |
| Display system Grant 5,913,617 - Helstern June 22, 1 | 1999-06-22 |
| Display system having electroluminescent devices Grant 5,820,246 - Helstern October 13, 1 | 1998-10-13 |
| Illumination system Grant 5,743,629 - Helstern , et al. April 28, 1 | 1998-04-28 |
| Display system Grant 5,544,019 - Tatavoosian , et al. August 6, 1 | 1996-08-06 |
| Display system Grant 5,295,050 - Helstern , et al. March 15, 1 | 1994-03-15 |
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