Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5589630 | Fast gas chromatography method, apparatus and applications | Patrick M. Wiegand, John F. Fisher, John R. Parrish, Elizabeth Ballard, George W. Schwarz, Jr. +1 more | 1996-12-31 |
| 5437179 | Fast gas chromatography method, apparatus and applications | Patrick M. Wiegand, John F. Fisher, John R. Parris, Elizabeth Ballard, George W. Schwarz, Jr. +1 more | 1995-08-01 |