Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5980102 | Method for measuring physical characteristics in a pipeline without tapping | Foster B. Stulen, Susan T. Brown, Glenda S. Holderbaum, David Philips | 1999-11-09 |
| 5836693 | Method and apparatus for measuring pressure in a pipeline without tapping | Foster B. Stulen, Susan T. Brown, Glenda S. Holderbaum, David Philips | 1998-11-17 |
| 5645348 | Method and apparatus for measuring pressure in a pipeline without tapping | Foster B. Stulen, Susan T. Brown, Glenda S. Holderbaum, David Philips | 1997-07-08 |
| 5412989 | Acoustic tracing of buried conduits | John L. Fabian, Jerry E. Farstad | 1995-05-09 |
| 4783990 | Apparatus for measuring the quantity of gas pumped by a compressor | David M. Thomson | 1988-11-15 |
| 4676095 | Apparatus for measuring the work performed by a gas compressor | David M. Thomson, John J. Sherman | 1987-06-30 |