Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6321586 | Conveyor friction measurement and cleaning system | Edward A. Wojtowicz | 2001-11-27 |
| 6292112 | Vehicle presence detection system | Charles De Renzi | 2001-09-18 |
| 6195020 | Vehicle presence detection system | Ronald E. Brodeur, Sr., Charles S. DeRenzi, Eugene T. Mullin | 2001-02-27 |
| 5868360 | Vehicle presence detection system | Charles De Renzi | 1999-02-09 |
| 5811946 | System and method for velocity control of a D.C. Motor | Eugene T. Mullin | 1998-09-22 |
| 5652525 | System and method for detecting D.C. motor circuit failures | Eugene T. Mullin | 1997-07-29 |
| 5612629 | System and method for detecting fault conditions in a direct current motor | Eugene T. Mullin | 1997-03-18 |
| 4665461 | Circuit for reducing electromagnetic interference from magnetic core keyboards | — | 1987-05-12 |
| 4460929 | Noise cancelling system for low frequency analog recording | — | 1984-07-17 |
| 4306191 | Initializing circuit for long-time constant electronic devices | — | 1981-12-15 |
| 4302804 | DC Voltage multiplier using phase-sequenced CMOS switches | — | 1981-11-24 |
| 4291300 | Tracking analog-to-digital converter for AC signals | — | 1981-09-22 |