Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5669961 | Method for the purification of noble gases, nitrogen and hydrogen | John D. Baker, Dale G. Tuggle | 1997-09-23 |
| 5591340 | Centrifugal separator | Lawrence L. Macaluso, H. William Sams, III, Charles H. Schardin, Jr., Alfred G. Federici | 1997-01-07 |