Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6260593 | Race tire containing band element | Charles D. Spragg, Dale R. Harrigle, Jr., James M. Kirby | 2001-07-17 |
| 6067848 | Portable tire uniformity measurement system and method | James F. Siegfried, Donald E. Andrews, William P. Stanfield | 2000-05-30 |
| 5339879 | Pneumatic tire having opposite spiral oriented beads | Stephen M. Vossberg, John D. Clothiaux, Dale R. Harrigle, Jr., Allen C. Kearney, James A. Williams +1 more | 1994-08-23 |
| 5267847 | Compact precision extrusion system | Georg G. A. Bohm, Arthur W. Greenstreet, Charles D. Spragg | 1993-12-07 |
| 5156781 | Compact precision extrusion method | Georg G. A. Bohm, Arthur W. Greenstreet, Charles D. Spragg | 1992-10-20 |
| 4951892 | Server system for rubberized sheets | John D. Rensel, Joseph C. Norka | 1990-08-28 |