Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D335704 | Partially shell encased swimming pool chemical tablet | — | 1993-05-18 |
| 5137731 | Chemical tablet with central hole and partially exposed top and bottom | — | 1992-08-11 |
| D328333 | Container for swimming pool chemical tablets for use in skimmers, floaters or feeders | — | 1992-07-28 |
| D325619 | Shell encased pool chemical tablet | — | 1992-04-21 |
| D309493 | Chlorine dispenser for swimming pools | — | 1990-07-24 |
| 4928813 | Encased pool chemical capsule with extended ends and method of making the same | — | 1990-05-29 |
| 4923618 | Method of chlorinating a swimming pool | David E. Michaels | 1990-05-08 |
| 4876003 | Encased pool chemical tablet with domed ends | — | 1989-10-24 |
| D283649 | Swimming pool chemical tablet | — | 1986-04-29 |
| 4546503 | Pool chemical tablet and container | — | 1985-10-15 |
| 4444316 | Gas scavenger agents for containers of solid chloroisocyanurates | — | 1984-04-24 |
| 4349493 | Briquets of hydrated calcium hypochlorite | Clair H. Putnam | 1982-09-14 |
| 4208376 | Water treatment chemical dispenser with control tube | Arlon G. Sangster, Joseph J. Tepas, Jr. | 1980-06-17 |