Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5782427 | Tandem-engine aircraft propulsion module | — | 1998-07-21 |
| RE33522 | Conversion of letterpress to offset printing | Duane H. Houy | 1991-01-22 |
| 4932321 | Conversion of letterpress to offset printing | — | 1990-06-12 |
| 4875936 | Conversion of letterpress to offset printing | — | 1989-10-24 |
| 4798137 | Conversion of letterpress to offset printing | Duane H. Houy | 1989-01-17 |
| 4768436 | Conversion of letterpress to offset printing | Duane H. Houy | 1988-09-06 |
| 4677911 | Conversion of letterpress to offset printing | — | 1987-07-07 |
| 4620480 | Conversion of letterpress to offset printing | — | 1986-11-04 |
| 4445881 | Method and apparatus for improving newspaper folding and cutting mechanisms | Lee Bullen | 1984-05-01 |