Issued Patents All Time
Showing 1–18 of 18 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6254233 | Wide-angle view eyeglasses | Anthony Prestandrea | 2001-07-03 |
| 5915136 | Real-image viewfinder with stationary and movable real image planes | — | 1999-06-22 |
| 5642734 | Method and apparatus for noninvasively determining hematocrit | Allan L. Kaminsky | 1997-07-01 |
| 5581409 | Imaging system to combine disparate fields of view | — | 1996-12-03 |
| 5537254 | Compact small format zoom lens | — | 1996-07-16 |
| 5500770 | Macrolens system for emission microscopy | J. Robert Zinter | 1996-03-19 |
| 5475460 | Photographic play set having improved lighting | Stanley W. Stephenson | 1995-12-12 |
| 5461512 | Zoom camera lens having three moving groups | — | 1995-10-24 |
| 5335033 | Lensless camera viewfinder | William L. Burnham | 1994-08-02 |
| 5335034 | Zoom viewfinder with non-rectangular window | Alan E. Lewis | 1994-08-02 |
| 5331360 | Adaptor for overhead projector | Edward J. Walsh | 1994-07-19 |
| 5300977 | Zoom viewfinder with fixed size moving window | Alan E. Lewis | 1994-04-05 |
| 5241337 | Real image viewfinder requiring no field lens | Ellis I. Betensky | 1993-08-31 |
| 5182592 | Real image zoom viewfinder | Ellis I. Betensky | 1993-01-26 |
| 5155517 | Optical system with improved field mask | Ellis I. Bentensky | 1992-10-13 |
| 5130845 | Real image viewfinder | — | 1992-07-14 |
| 4949117 | Camera | Roger S. Van Heyningen, Cynthia S. Bell | 1990-08-14 |
| 4821053 | Photographic flash device | David R. Dowe | 1989-04-11 |