Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7213440 | Calibration and validation for a leak detector | David J. Balke, Peter Davey | 2007-05-08 |
| 7017387 | Calibration and validation for leak detector | David J. Balke, Peter Davey | 2006-03-28 |
| 6279383 | Method and apparatus for detecting leakage | David J. Balke | 2001-08-28 |
| 5546789 | Leakage detection system | David J. Balke | 1996-08-20 |
| 5363689 | Calibration device for leak detecting instruments | David J. Balke | 1994-11-15 |
| 5161410 | Mass flow sensor for very low fluid flows | Peter Davey | 1992-11-10 |