Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4969504 | Evaporable foam pattern for use in casting an exhaust manifold | Jeffrey P. Ruhnke, Ricky Lulloff | 1990-11-13 |
| 4964454 | Evaporable foam pattern for casting an air induction manifold | James C. Hubbell, David D. Liegeois | 1990-10-23 |
| 4951733 | Evaporable foam pattern for casting an engine block of a two-cycle engine | David W. Kusche, Steven W. Habeck | 1990-08-28 |
| 4907638 | Evaporable foam pattern for use in casting a cylinder head | James C. Hubbell, David D. Liegeois | 1990-03-13 |
| 4721149 | Lost foam casting system with high yield sprue | William G. Hesterberg, Wilfred A. Pagel | 1988-01-26 |