| 7485861 |
System and method for remote emissions sensing including calculation and calibration techniques compensating for temperature and pressure effects |
— |
2009-02-03 |
| 7274994 |
Exhaust opacity measuring device |
Donald H. Stedman, Gary Bishop |
2007-09-25 |
| 7016789 |
Exhaust opacity measuring device |
Donald H. Stedman, Gary Bishop |
2006-03-21 |
| 6701256 |
Exhaust opacity measuring device |
Donald H. Stedman, Gary Bishop |
2004-03-02 |
| 6167991 |
Method and apparatus for detecting position of an elevator door |
Richard D. Pustelniak |
2001-01-02 |
| 6051829 |
Safety detection system for sliding doors |
— |
2000-04-18 |
| 5925858 |
Safety system for detecting small objects approaching closing doors |
Richard D. Pustelniak |
1999-07-20 |
| 5886307 |
Safety detection system for sliding doors |
Richard D. Pustelniak |
1999-03-23 |
| 4622551 |
Half-duplex industrial communications system |
Bertram F. Kupersmith, Julian H. Shull, Gregory A. Schienda |
1986-11-11 |
| 4302814 |
Relative exhaust back-pressure of an internal combustion engine |
Rinaldo R. Tedeschi |
1981-11-24 |
| 4302815 |
Snap acceleration test for an internal combustion engine |
Rinaldo R. Tedeschi |
1981-11-24 |
| 4301678 |
Relative power contribution of an internal combustion engine |
Rinaldo R. Tedeschi |
1981-11-24 |
| 4291383 |
Spark plug load testing for an internal combustion engine |
Rinaldo R. Tedeschi |
1981-09-22 |
| 4291382 |
Relative manifold vacuum of an internal combustion engine |
Rinaldo R. Tedeschi |
1981-09-22 |
