Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date | Approx Value ⓘ |
|---|---|---|---|---|
| 7638636 | Phosphonium and imidazolium salts and methods of their preparation | Yuehui Zhou, Allan J. Robertson, John H. Hillhouse | 2009-12-29 | $22,184,000 |
| 5744992 | Digital phase shifter | — | 1998-04-28 | $7,506,000 |