Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11482201 | Materials and fabrication method for percussive musical instruments | Robert A. H. Heard, Steven McHaney | 2022-10-25 |
| 8263846 | Internal virtual extender tube for marimba resonator tube | Stephen J. Cole, Joshua Stumpf | 2012-09-11 |
| 7439434 | Multi-component percussion mallet | Stephen J. Cole | 2008-10-21 |
| 4334391 | Redundant deployable lattice column | John M. Hedgepeth, John C. Stammreich | 1982-06-15 |