Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10609879 | Apparatus and method for preventing anaerobic root conditions | David G. Pelka | 2020-04-07 |
| 6582103 | Lighting apparatus | John M. Popovich, David G. Pelka, William A. Parkyn, Michael J. Popovich | 2003-06-24 |
| D458402 | Illuminated fastener | — | 2002-06-04 |
| D457674 | Illuminated fastener | — | 2002-05-21 |
| D457675 | Illuminated fastener | — | 2002-05-21 |