Issued Patents All Time
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7158311 | Interchangeable lens system | Anthony J. Cocola, Joel S. Lawther | 2007-01-02 |
| 6873473 | Two position variable focal length lens | Joel S. Lawther | 2005-03-29 |
| 6525886 | Two group zoom lens having weak front element | — | 2003-02-25 |
| 6084724 | Glass coated cemented plastic doublets and method for making | Philip J. Wiegand, Lee R. Estelle | 2000-07-04 |
| 5710946 | Water-resistant camera with optical wedge to shift image of non-aligned film frame counter | James G. Rydelek | 1998-01-20 |
| 5689376 | Two element optical system, a camera using it and method of making the camera | — | 1997-11-18 |
| 5627684 | Method of manufacturing a lens system insensitive to aspheric decentering and a lens system manufactured thereby | — | 1997-05-06 |
| 5604639 | Two-element optical system and camera and method of making a camera | Joseph Bietry | 1997-02-18 |
| 5563736 | Compact real image finder | — | 1996-10-08 |
| 5555062 | Recyclable single-use camera with replaceable front lens element | Douglas H. Pearson, Jude A. SanGregory, Kevin Lyons, Joseph Bietry | 1996-09-10 |
| 5473473 | Two element plastic zoom camera lens | Lee R. Estelle | 1995-12-05 |
| 5335034 | Zoom viewfinder with non-rectangular window | Paul L. Ruben | 1994-08-02 |
| 5300977 | Zoom viewfinder with fixed size moving window | Paul L. Ruben | 1994-04-05 |
| 5173727 | Zoom viewfinder | — | 1992-12-22 |
| 4196168 | Sloped tray arrangement for polymerization reactor | — | 1980-04-01 |