Issued Patents All Time
Showing 51–75 of 79 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5198727 | Acoustic resonance operation of xenon-metal halide lamps on unidirectional current | Gary R. Allen, Joseph M. Allison, John M. Davenport, Kenneth S. King | 1993-03-30 |
| 5184882 | Projection headlamp lighting system using different diameter optical light conductors | John M. Davenport, Lee Barnes | 1993-02-09 |
| 5184883 | Automobile lighting system that includes an exterior indicating device | William W. Finch, John M. Davenport | 1993-02-09 |
| 5121034 | Acoustic resonance operation of xenon-metal halide lamps | Gary R. Allen, Joseph M. Allison, John M. Davenport | 1992-06-09 |
| 5101325 | Uniform illumination of large, thin surfaces particularly suited for automotive applications | John M. Davenport, John L. Henkes | 1992-03-31 |
| 5087218 | Incandesent lamps and processes for making same | Frederic F. Ahlgren, John M. Davenport, John J. Karikas | 1992-02-11 |
| 5059865 | Xenon-metal halide lamp particularly suited for automotive applications | Rolf S. Bergman, John M. Davenport | 1991-10-22 |
| 5058985 | Coupling means between a light source and a bundle of optical fibers and method of making such coupling means | John M. Davenport, William W. Finch, John L. Henkes, Jeffrey D. Johnson | 1991-10-22 |
| 5047695 | Direct current (DC) acoustic operation of xenon-metal halide lamps using high-frequency ripple | Gary R. Allen, Joseph M. Allison, John M. Davenport | 1991-09-10 |
| 5045748 | Tungsten-halogen incandescent and metal vapor discharge lamps and processes of making such | Frederic F. Ahlgren, John M. Davenport, John J. Karikas | 1991-09-03 |
| 5032758 | Precision tubulation for self mounting lamp | John M. Davenport, Maw H. Lee | 1991-07-16 |
| 5023758 | Single arc discharge headlamp with light switch for high/low beam operation | Gary R. Allen, John M. Davenport | 1991-06-11 |
| 4968916 | Xenon-metal halide lamp particularly suited for automotive applications having an improved electrode structure | John M. Davenport, Rocco T. Giordano, Robert H. Springer | 1990-11-06 |
| 4958263 | Centralized lighting system employing a high brightness light source | John M. Davenport, William W. Finch, Richard C. Nagle, Ronald S. White | 1990-09-18 |
| 4949227 | Upper and lower beam optical switch for line-of-light headlamps using opaque masks | William W. Finch, John M. Davenport | 1990-08-14 |
| 4935668 | Metal halide lamp having vacuum shroud for improved performance | Park French, John M. Davenport | 1990-06-19 |
| 4930049 | Optical multiplexed electrical distribution system particularly suited for vehicles | John M. Davenport | 1990-05-29 |
| 4918356 | Electric incandescent lamp and method of manufacture therefor | Edward A. Enyedy | 1990-04-17 |
| 4904907 | Ballast circuit for metal halide lamp | Joseph M. Allison, Park French, John M. Davenport, Robert A. Leskovec | 1990-02-27 |
| 4891555 | Metal vapor discharge lamps | Frederic F. Ahlgren, John M. Davenport, John J. Karikas | 1990-01-02 |
| 4868458 | Xenon lamp particularly suited for automotive applications | John M. Davenport | 1989-09-19 |
| 4868718 | Forward illumination lighting system for vehicles | John M. Davenport, William W. Finch | 1989-09-19 |
| 4851969 | Optical control system particularly suited for infrequently activated devices | John M. Davenport | 1989-07-25 |
| 4839559 | Radiant energy incandescent lamp | Frederic F. Ahlgren, Rolf S. Bergman, John M. Davenport, Robert G. Hantman, Leonard E. Hoegler | 1989-06-13 |
| 4810932 | Tungsten-halogen incandescent and metal vapor discharge lamps and processes of making such | Frederic F. Ahlgren, John M. Davenport, John J. Karikas | 1989-03-07 |