Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6875942 | Methods and systems for fabricating spiral welded cylinders | Warner G. Fencl, Robert Shaner, Michael R. Williams | 2005-04-05 |
| 6717093 | Methods and systems for fabricating spiral welded cylinders | Warner G. Fencl, Robert Shaner, Michael R. Williams | 2004-04-06 |
| 5178317 | Welding method for pneumatic outlet bottom cover assembly | Richard H. Dugge, Bob Barnes | 1993-01-12 |