Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8447533 | Method of wastewater flow measurement, system analysis, and improvement | David D. Williams | 2013-05-21 |
| 7721600 | Flow measurement apparatus and method | David D. Williams, Fred D. Dunlap, Jr., Mark V. LaPlante, Ronald R. Anderson | 2010-05-25 |
| 6820647 | Valve position monitor | John Jude Grecco, Antimo J. Martin, Leo Minervini | 2004-11-23 |
| D300148 | Keycard with indexing channels | Howard A. Osofsky | 1989-03-07 |
| D295920 | Keycard | Howard A. Osofsky | 1988-05-31 |
| 4494565 | Indicator assembly | Gary Glockner | 1985-01-22 |
| 4494566 | Indicator assembly | Gary Glockner | 1985-01-22 |