Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D837926 | Firearm grip | — | 2019-01-08 |
| 6963265 | Ball grid array resistor network having a ground plane | Yinggang Tu, Richard Cooper | 2005-11-08 |
| 6882266 | Ball grid array resistor network having a ground plane | Yinggang Tu, Richard Cooper | 2005-04-19 |
| 6726546 | Method and apparatus for deburring machined workpieces | David Lucas, Charles R. Hileman, Buddy Kuczewski, Charles Mark Williams | 2004-04-27 |
| 6572455 | Method and apparatus for deburring machined workpieces | David Lucas, Charles R. Hileman, Buddy Kuczewski, Charles Mark Williams | 2003-06-03 |
| 5834903 | Double resonant driver ballast for gas lamps | — | 1998-11-10 |
| 4354735 | Optical transducer | David W. Stowe, John D. Christian, deceased, Albert Christian, Martha R. Christian, heir, Ann L. Ziegler, heir | 1982-10-19 |