Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D771779 | T-fitting | David A. McAllister | 2016-11-15 |
| D771780 | Elbow fitting | David A. McAllister | 2016-11-15 |
| D630305 | Fitting | Samuel P. Adams, Joseph W. Ghering, David A. McAllister, John C. McDonald | 2011-01-04 |
| 7428909 | Fixtures for trapping condensation | Donald J. Klein | 2008-09-30 |