Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D322087 | Typewriter | — | 1991-12-03 |
| D319223 | Pocket electronic dictionary | Paul M. Pierce | 1991-08-20 |
| D317321 | Typewriter | — | 1991-06-04 |
| D311926 | Typewriter | — | 1990-11-06 |
| D310209 | Hand held electronic dictionary | — | 1990-08-28 |
| D308535 | Typewriter | — | 1990-06-12 |
| D301041 | Typewriter | — | 1989-05-09 |
| 4808017 | Pivotable character display for a typewriter | Howard F. Sherman, James H. Greggains, Hans W. Mueller | 1989-02-28 |
| D289638 | Housing for an electronic push button dialer | — | 1987-05-05 |
| 4521981 | Key holder | Chester Fudge | 1985-06-11 |