Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6901432 | Translator apparatus for two communication networks | John C. Schlotterer, Joseph C. Engel | 2005-05-31 |
| 6021357 | Apparatus for solving ladder logic | — | 2000-02-01 |
| 5420799 | Circuit breaker - associated backpack unit for lower-link communication with a PC computer monitoring system and energy monitoring system using a plurality of such backpack units | Joseph C. Engel, Denis A. Mueller, Richard B. Bell, Robert L. Cather | 1995-05-30 |
| 5052899 | Anti-surge compressor loading system | — | 1991-10-01 |
| 5046928 | Long term compressor control apparatus | — | 1991-09-10 |
| 5032062 | Compressor demand control system for long term compressor operation | — | 1991-07-16 |
| 4940391 | Compressor surge detection system | Robert T. Elms, Gary F. Saletta | 1990-07-10 |