Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D877974 | Water pipe | — | 2020-03-10 |
| 5180122 | Apparatus for deicing | Donald J. Christian, Graham D. Robertson, Michael J. Westcott | 1993-01-19 |
| 4509365 | Method and apparatus for weighing a sucker-rod pumped well | Donald E. Eineichner, Rangasami S. Chandra | 1985-04-09 |