Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4519584 | Fence post driver | — | 1985-05-28 |
| 4334792 | Destination-referenced tab, operations for typewriters that store text | William F. Joest, III, Edward V. Rutkowski, Jr. | 1982-06-15 |
| 4330217 | Line adjustment apparatus for a typewriter | Dennis M. Churgovich, William F. Joest, III, Edward V. Rutkowski, Jr. | 1982-05-18 |
| 4273456 | Paper insertion apparatus for a typewriter | John J. Bisczat, Robert R. Lisk, James L. Sizemore | 1981-06-16 |
| 4265554 | Paragraph indent | Douglas E. Clancy, Carl F. Johnson, Danny Marvin Neal | 1981-05-05 |
| 4252451 | Print point reposition feature for an electronic typewriter | Douglas E. Clancy, Carl F. Johnson, Danny Marvin Neal | 1981-02-24 |
| 4215422 | Selectively modifiable phrase storage for a typewriter | Edward V. Rutkowski, Jr. | 1980-07-29 |