Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7465121 | Vibrating concrete hand trowel | Chad Hendricks | 2008-12-16 |
| 6747995 | System for multiple voice lines with data over a single subscriber loop | Randall Brown, John Spenik, Thomas J. Buege, Keith M. McDonald, James F. Hoff | 2004-06-08 |
| 5854794 | Digital transmission framing system | — | 1998-12-29 |
| 5633634 | Data rate conversion circuit | — | 1997-05-27 |