Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9214271 | Method of providing arc-resistant dry type transformer enclosure | Robert C. Ballard, Edgar A. Wimmer, Jr., Rafael Gutierrez | 2015-12-15 |
| 8492662 | Arc-resistant dry type transformer enclosure having arc fault damper apparatus | Robert C. Ballard, Edgar A. Wimmer, Jr., Rafael Gutierrez | 2013-07-23 |
| 8456838 | Arc-resistant dry type transformer enclosure having arc channels | Robert C. Ballard, Edgar A. Wimmer, Jr., Rafael Gutierrez | 2013-06-04 |
| 8375566 | Method of providing arc-resistant dry type transformer enclosure | Robert C. Ballard, Edgar A. Wimmer, Jr., Rafael Gutierrez | 2013-02-19 |