Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6442987 | Method of producing a shaft from a piece of tubing, apparatus for making a shaft from a piece of tubing and camshaft produced from a piece of tubing | — | 2002-09-03 |
| 5988484 | Clad tubular product and method of manufacturing same | Donald H. Osborn | 1999-11-23 |
| 5940951 | Process for the manufacture of cladded metal pipes | Wolfgang Schulz, Donald H. Osborn | 1999-08-24 |