Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10931094 | Method for detecting an open-phase condition of a transformer | Robert F. Arritt, Roger C. Dugan, Gregory A. Franklin | 2021-02-23 |
| 10522998 | Method for detecting an open-phase condition of a transformer | Robert F. Arritt, Roger C. Dugan, Gregory A. Franklin | 2019-12-31 |
| 10090665 | Method for detecting an open-phase condition of a transformer | Robert F. Arritt, Roger C. Dugan, Gregory A. Franklin | 2018-10-02 |
| 6726742 | Air cleaner with a secondary intake | NICK ARDEN, John Marsh, Neil McGregor | 2004-04-27 |