Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6272767 | Environmental test chamber | Gregory J. Langfeldt | 2001-08-14 |
| 6220100 | Vibration table with uniform distribution | Charles F. Felkins, Gregory M. Gilles, Gregory J. Langfeldt | 2001-04-24 |