Issued Patents All Time
Showing 26–29 of 29 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5054741 | Multiple size tubing hanger | — | 1991-10-08 |
| 4819698 | Water hammer arrester | — | 1989-04-11 |
| 4260123 | Tubing hanger | — | 1981-04-07 |
| D255647 | Closet bolt and nut unit | Martin E. Ismert, III | 1980-07-01 |