Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6456191 | Tag system with anti-collision features | — | 2002-09-24 |
| 6144303 | Tag and system for patient safety monitoring | — | 2000-11-07 |
| 6137414 | Asset security tag | — | 2000-10-24 |
| 5648714 | Method and device for charging and conditioning batteries | Douglas F. Eryou | 1997-07-15 |