Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4809861 | Buckle resistant can end | Neal E. Langseder | 1989-03-07 |
| 4790705 | Method of forming a buckle resistant can end | Neal E. Langseder | 1988-12-13 |
| 4750314 | Method for propellant filling and sealing of a container | Raymond E. Mietz | 1988-06-14 |
| 4658979 | Propellant filling and sealing valve | Raymond E. Mietz | 1987-04-21 |
| 4467933 | Warp resistant closure for sanitary cans | Theodore Sopher | 1984-08-28 |
| 4416389 | Retained tab easy open end (small pour hole) | Fred W. Wren | 1983-11-22 |