Sitzema; Ronald L.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Sitzema; Ronald L..The latest application filed is for "perforated reflector for an ornamental luminaire".
- Sitzema; Ronald L. - Ellsworth MI
- Sitzema; Ronald L. - Charlevoix MI
| Patent | Date |
|---|---|
| Perforated reflector for an ornamental luminaire Grant 5,743,634 - Sitzema , et al. April 28, 1 | 1998-04-28 |
| Transflection reflector having controlled reflected and transmitted light distribution Grant 5,481,445 - Sitzema , et al. January 2, 1 | 1996-01-02 |
| Visual display panel Grant 5,321,417 - Voelzke , et al. June 14, 1 | 1994-06-14 |
| Outdoor variable focus light fixture Grant 5,249,109 - Denison , et al. September 28, 1 | 1993-09-28 |
| Low voltage outdoor floodlight having adjustable beam pattern, ball and socket mounting, and novel cable handling Grant 5,086,379 - Denison , et al. February 4, 1 | 1992-02-04 |
| Tier light including deflecting and refracting prisms Grant 4,969,074 - Davis , et al. November 6, 1 | 1990-11-06 |
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