Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5649290 | Handover method based upon channel quality | — | 1997-07-15 |
| 5605569 | Precipitated silica having high sodium sulfate content | James L. Boyer, Thomas G. Krivak, Harold E. Swift | 1997-02-25 |