Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D327849 | Beer keg cap | — | 1992-07-14 |
| D311868 | Beer keg cap | — | 1990-11-06 |
| 4779750 | Beer keg cap | — | 1988-10-25 |
| 4236305 | Apparatus for fitting a resilient ring on a bottle | Ross W. Hetherington, Leonard Ireland, John Canty, Ernest R. Banfield | 1980-12-02 |