Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5367442 | Self-contained solar powered lamp | John S. Frost, David Tanner | 1994-11-22 |
| 5211470 | Self-contained solar powered light | John S. Frost, Mark R. Erickson, Brent P. Boyer | 1993-05-18 |
| 5065291 | Marking light | John S. Frost, Mark R. Erickson, Brent P. Boyer | 1991-11-12 |
| 4975816 | Lens for low light level lamp | John S. Frost, Mark R. Erickson, Bethanne Felder, Lloyd V. Wallace | 1990-12-04 |