Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D629531 | Centrifugally cast ductile iron utility pole having stepped portions | Michael C. Keel, Joseph F. Carter, Steven G. Meisel | 2010-12-21 |
| D624667 | Interconnected centrifugally cast, ductile iron utility pole members | Michael C. Keel, Joseph F. Carter, Steven G. Meisei | 2010-09-28 |
| D617471 | Centrifugally cast ductile iron utility pole having stepped portions | Michael C. Keel, Joseph F. Carter, Steven G. Meisel | 2010-06-08 |
| D616116 | Pair of interconnected centrifugally cast ductile iron utility pole members | Michael C. Keel, Joseph F. Carter, Steven G. Meisel | 2010-05-18 |