Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5102618 | Vapour phase catalytic exchange apparatus | — | 1992-04-07 |
| 4780116 | Low temperature preparative gas chromatography apparatus | Christopher H. Cheh, Samuel H. Hawthorne, Ronald E. Massey, Savtantar K. Sood | 1988-10-25 |
| 4732581 | Gas chromatographic method for separating hydrogen isotopes | Christopher H. Cheh, Ronald E. Massey, Samuel H. Hawthorne, Savtantar K. Sood | 1988-03-22 |