Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date | Approx Value ⓘ |
|---|---|---|---|---|
| 5838783 | Smart directory management | Frank Cheng, Randall J. Penning | 1998-11-17 | $34,598,000 |
| 5737392 | Two-pass directory entry device and method | Frank Cheng, Randall J. Penning | 1998-04-07 | $31,978,000 |
| 5717740 | Telephone station account number dialing device and method | Randall J. Penning | 1998-02-10 | $19,738,000 |
| 5027974 | Cotton roll dispenser | Jack D. Bankier | 1991-07-02 |