Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5320260 | Syrup dispenser | Richard W. Hofmann, Michael C. Illenberger | 1994-06-14 |
| D320939 | Dispensing closure | Richard W. Hofmann | 1991-10-22 |
| 5022566 | Press-open side dispensing closure | Richard W. Hofman | 1991-06-11 |
| 4901892 | Tamper evident container closure | — | 1990-02-20 |
| 4670398 | Plant tissue culture vessel and filter | — | 1987-06-02 |
| 4358908 | Plant culture vessel | — | 1982-11-16 |
| 4278577 | Bis(sulfonamide) stabilizers for synthetic polymers | — | 1981-07-14 |
| 4224765 | Plant culture container | — | 1980-09-30 |