Issued Patents 2011
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7895937 | Piston having twisted skirt panels | David Edward Ramey | 2011-03-01 |
| 7891403 | Piston mold assembly and method of constructing a piston therewith | Christopher T. Shoptaw | 2011-02-22 |