Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10918177 | Ergonomic or user-friendly dual walking cane | — | 2021-02-16 |
| 9316130 | High efficiency steam engine, steam expander and improved valves therefor | James V. Harmon, Sr. | 2016-04-19 |
| 8661817 | High efficiency dual cycle internal combustion steam engine and method | James V. Harmon, Sr. | 2014-03-04 |
| 8448440 | Method and apparatus for achieving higher thermal efficiency in a steam engine or steam expander | James V. Harmon, Sr. | 2013-05-28 |