Issued Patents 2002
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6476719 | Ultra-sensitive magnetic field receiver capable of operating in high noise environments | Donald K. Belcher, John A. Eisenberg, Douglas Bowman | 2002-11-05 |
| 6393045 | Spread spectrum baseband modulation of magnetic fields for communications and proximity sensing | Donald K. Belcher, Robert W. Boyd | 2002-05-21 |
| 6349116 | Data communication system harnessing frequency shift keyed magnetic field | Douglas Bowman | 2002-02-19 |