Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4726334 | Composite cylinder housing and process | Matthew W. Holtzberg, Steven J. Henke | 1988-02-23 |
| 4453505 | Composite push rod and process | Matthew W. Holtzberg | 1984-06-12 |
| 4440069 | Composite piston and process | Matthew W. Holtzberg, Steven J. Henke, James C. Oakley | 1984-04-03 |
| 4433652 | Composite valve and process | Matthew W. Holtzberg | 1984-02-28 |
| 4433964 | Composite timing gears and process | Matthew W. Holtzberg, Steven J. Henke | 1984-02-28 |
| 4432311 | Composite valve spring retainer and process | Matthew W. Holtzberg, Steven J. Henke, Billy W. Cole | 1984-02-21 |
| 4432925 | Composite piston ring and process | Matthew W. Holtzberg | 1984-02-21 |
| 4430969 | Composite rocker arm and process | Matthew W. Holtzberg | 1984-02-14 |
| 4430906 | Composite wrist pin and process | Matthew W. Holtzberg | 1984-02-14 |