Issued Patents All Time
Showing 26–31 of 31 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6667455 | Drawn arc welding method and drawn-arc-weld ferrule | Steven Donahue | 2003-12-23 |
| 6639183 | Method for attaching parts together using gas metal arc welding | Frank E. Balogh, Steven Donahue | 2003-10-28 |
| 6525289 | Piston for magneto-rheological fluid systems and method for its manufacture | Michael Froning, Sohrab Sadri Lonbani, Janusz Goldasz, Michael Everett Hornback, Patrick Neil Hopkins +1 more | 2003-02-25 |
| 6454059 | Apparatus and method for a magneto-rheological (MR) damping device | Sohrab Sadri Lonbani, John H. Muhlenkamp, Patrick Neil Hopkins, Ilya Lisenker | 2002-09-24 |
| 6414265 | Method and apparatus for drawn arc welding with magnetically impelled arc | — | 2002-07-02 |
| 5896960 | Welded rod fitting damper manufacture | — | 1999-04-27 |