Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12305396 | Reclaimed roofing granules and related methods | Jonathon MacBride, David D. Kragten, Daniel E. Rardon, Justin P. Dunlap, Jared Horner | 2025-05-20 |
| 11226432 | Hyperbright white roofing granules with high solar reflectance | Ingo B. Joedicke, Wade O. Kemp, III | 2022-01-18 |
| 7945225 | Medium loss high power IBOC combiner | — | 2011-05-17 |
| RE40890 | Temperature compensated high power bandpass filter | John A. Lunn | 2009-09-01 |
| 7142837 | Multiple-section bandpass filter for broadcast communications | — | 2006-11-28 |
| 6529104 | Temperature compensated high power bandpass filter | John A. Lunn | 2003-03-04 |
| 6232852 | Temperature compensated high power bandpass filter | John A. Lunn | 2001-05-15 |