Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9897387 | Heat exchanger with double-walled tubes | — | 2018-02-20 |
| 6022746 | Allocation method | Patrick P. Fritchie | 2000-02-08 |
| 4450975 | Wall-mounted ash tray | William T. Glass | 1984-05-29 |