Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D648427 | Ring gasket | Matthew A. Bowman, Scott D. Madara, Charles E. Wilk, Jr. | 2011-11-08 |
| 8038176 | Seal with rigid stop ring | Matthew A. Bowman, Scott D. Madara, Charles E. Wilke, Jr. | 2011-10-18 |
| D643912 | Ring gasket | Matthew A. Bowman, Scott D. Madara, Charles E. Wilk, Jr. | 2011-08-23 |