Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8596108 | Gas measuring device and method of operating the same | — | 2013-12-03 |
| 8253942 | Optical gas detector | — | 2012-08-28 |
| 7185528 | Speed and fluid flow controller | — | 2007-03-06 |
| 6981402 | Speed and fluid flow controller | — | 2006-01-03 |
| 6812708 | Combustible-gas measuring instrument | — | 2004-11-02 |
| 4686523 | Cursor display for oscilloscopes | — | 1987-08-11 |
| 4628254 | Method for digitally measuring waveforms | — | 1986-12-09 |
| 4593242 | Control circuit for a delayed sweep oscilloscope | Alfred K. Hillman, Jr., William Q. Law | 1986-06-03 |
| 4581585 | Apparatus and method for automatically calibrating a sweep waveform generator | — | 1986-04-08 |
| 4553091 | Automatic vertical calibration method and system for an oscilloscope | — | 1985-11-12 |