Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5512757 | Spectrophotometer and optical system therefor | Sharam M. Salimian, Rolf W. Siemon | 1996-04-30 |
| 4467435 | Infrared gas analyzer having detector elements of differing types | Dale F. Warnke | 1984-08-21 |
| 4355233 | Method and apparatus for negating measurement effects of interferent gases in non-dispersive infrared analyzers | Dale F. Warnke, Charles A. Keenan | 1982-10-19 |
| 4320297 | Split detector | Hoke R. Chism, Jr. | 1982-03-16 |