Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8186421 | Coreless pole mold and method of making same | Joseph F. Carter, Keith W. Mallet | 2012-05-29 |
| D629531 | Centrifugally cast ductile iron utility pole having stepped portions | Michael C. Keel, Joseph F. Carter, Keith W. Mallett | 2010-12-21 |
| D617471 | Centrifugally cast ductile iron utility pole having stepped portions | Michael C. Keel, Joseph F. Carter, Keith W. Mallett | 2010-06-08 |
| D616116 | Pair of interconnected centrifugally cast ductile iron utility pole members | Michael C. Keel, Joseph F. Carter, Keith W. Mallett | 2010-05-18 |