Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7389610 | Door system | Russell L. McMakin | 2008-06-24 |
| 6546245 | Inverted code sequence cordless signaling | — | 2003-04-08 |
| 6434394 | Multiple handset cordless telephone including a ring signal/call routing module | Jeffrey P. Grundvig | 2002-08-13 |
| 6256519 | Cordless telephone with corded operability | — | 2001-07-03 |
| 6212226 | Supplemental power for battery operated modems | — | 2001-04-03 |
| 5978757 | Post storage message compaction | — | 1999-11-02 |