Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4534481 | Snap-on, tamper-evident container closure | Gary M. Baughman | 1985-08-13 |
| 4413743 | Child-resistant safety closure | — | 1983-11-08 |
| 4351442 | Child-resistant safety closure | — | 1982-09-28 |
| 4320861 | Molded plastic tamper-proof cap with pull ring and tearable membranes | Mahlon E. Rieke | 1982-03-23 |
| 4294382 | Container closure device | Mahlon E. Rieke | 1981-10-13 |
| 4261478 | Tamper-proof closure cap | — | 1981-04-14 |