Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D568826 | Electronic switching system | Daniel A. Farnsworth | 2008-05-13 |
| D528534 | Audio/video intercom system | Daniel A. Farnsworth | 2006-09-19 |
| D521489 | Intercom base unit | Daniel A. Farnsworth | 2006-05-23 |