Patents per Year
Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date | Approx Value ⓘ |
|---|---|---|---|---|
| 4777645 | Telephone line test and display circuit | Richard W. Faith, James D. Eckman, Chuck Muir | 1988-10-11 | $3,290,000 |
| 4670898 | Direct access test unit for central office | Ben A. Pierce, Aaron Chan, Steven R. Coffelt | 1987-06-02 | $2,877,000 |
| 4645877 | Interface for connecting standard telephones to party lines | — | 1987-02-24 | $12,805,000 |
| 4587380 | Interface for connecting standard telephones to party lines | — | 1986-05-06 | $10,248,000 |
| 4567330 | Interface for connecting standard telephones to party lines | — | 1986-01-28 | $1,423,000 |