Johnson; Philip A.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Johnson; Philip A..The latest application filed is for "chiral nematic liquid crystal polarization modulated color display for stereoscopic viewing device".
- Johnson; Philip A. - Beaverton OR
- Johnson; Philip A. - Negaunee MI
- Johnson; Philip A. - Exeter NH
- Johnson; Philip A. - Kingston NH
- Johnson; Philip A. - Melrose MA
| Patent | Date |
|---|---|
| Chiral nematic liquid crystal polarization modulated color display for stereoscopic viewing device Grant 5,835,166 - Hall , et al. November 10, 1 | 1998-11-10 |
| Lift for physically-challenged passengers and method of operation Grant 5,595,470 - Berkey , et al. January 21, 1 | 1997-01-21 |
| Stereoscopic hardcopy methods Grant 5,398,131 - Hall , et al. March 14, 1 | 1995-03-14 |
| Electronic chip-carrier heat sinks Grant 4,679,118 - Johnson , et al. July 7, 1 | 1987-07-07 |
| Pinned heat-sink extrusion for circuit-board mounting Grant D285,301 - Johnson August 26, 1 | 1986-08-26 |
| Heat sinks for integrated circuit modules Grant 4,552,206 - Johnson , et al. November 12, 1 | 1985-11-12 |
| Heat sink fastenings Grant 4,321,423 - Johnson , et al. March 23, 1 | 1982-03-23 |
| Flanged-collar heat sink for electronic devices Grant D262,960 - Johnson , et al. February 9, 1 | 1982-02-09 |
| Self-fastened heat sink for electronic devices Grant D262,203 - Johnson , et al. December 8, 1 | 1981-12-08 |
| Self-fastened heat sinks Grant 4,235,285 - Johnson , et al. November 25, 1 | 1980-11-25 |
| Self-fastened heat sinks Grant 4,203,488 - Johnson , et al. May 20, 1 | 1980-05-20 |
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