Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10101573 | Optical filter | — | 2018-10-16 |
| 8699158 | Night vision filter for use with computer monitor screens and the like | — | 2014-04-15 |
| 8226251 | Eye cup night filter attachment and mounting device | — | 2012-07-24 |
| 6158865 | Color enhancing filter and method of employing a color enhancing filter to improve human eye vision | — | 2000-12-12 |
| 4542959 | Color correction filter and method of taking underwater photographs therewith | — | 1985-09-24 |