Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8032319 | Methods for analyzing streaming composite waveforms | Carl Hal Hansen, Stephen R. Lindsey, Christopher Edwin Spencer, Richard C. Lindsey, Karl Merkley | 2011-10-04 |
| 4879162 | Buryable warning tape | — | 1989-11-07 |