Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12326142 | Diaphragm position control system | Richard D. Hembree, Dustin Featherstone | 2025-06-10 |
| 6568559 | Termite control system with multi-fluid proportion metering and batch signal metering | Michelle J. Miller, Kenneth E. Lehrke | 2003-05-27 |
| D372034 | Reciprocating pump | James J. Handzel, Kent Hand, Bradley K. Voigt | 1996-07-23 |
| 5362148 | Rotary agitator with concentric suction tube | Kenneth E. Lehrke, Gerard L. Lehman | 1994-11-08 |