Issued Patents All Time
Showing 1–20 of 20 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9879507 | Adaptive stimulation system | Dennis W. Gilstad | 2018-01-30 |
| 9777556 | Adaptive stimulation system | Dennis W. Gilstad | 2017-10-03 |
| 9169707 | Tunable down-hole stimulation array | Dennis W. Gilstad | 2015-10-27 |
| 9080690 | Tunable check valve | Dennis W. Gilstad | 2015-07-14 |
| 9027636 | Tunable down-hole stimulation system | Dennis W. Gilstad | 2015-05-12 |
| 8944409 | Tunable fluid end | Dennis W. Gilstad | 2015-02-03 |
| 8939200 | Tunable hydraulic stimulator | Dennis W. Gilstad | 2015-01-27 |
| 8905376 | Tunable check valve | Dennis W. Gilstad | 2014-12-09 |
| 8827244 | Tunable fluid end | Dennis W. Gilstad | 2014-09-09 |
| 8746654 | Tunable fluid end | Dennis W. Gilstad | 2014-06-10 |
| 8720857 | Tunable fluid end | Dennis W. Gilstad | 2014-05-13 |
| 8708306 | Tunable valve assembly | Dennis W. Gilstad | 2014-04-29 |
| 8567754 | Tunable valve assembly | Dennis W. Gilstad | 2013-10-29 |
| 8567753 | Tunable valve assembly | Dennis W. Gilstad | 2013-10-29 |
| 8550425 | Impulse tolerant valve assembly | Dennis W. Gilstad | 2013-10-08 |
| 8496224 | Tunable valve assembly | Dennis W. Gilstad | 2013-07-30 |
| 8403337 | Multifunction ring | Dennis W. Gilstad | 2013-03-26 |
| 8292301 | Multifunction ring | Dennis W. Gilstad | 2012-10-23 |
| 8276918 | Plunger seal ring | Dennis W. Gilstad | 2012-10-02 |
| 7716761 | Adaptive positioning system | Dennis W. Gilstad, Elizabeth A. McGuigan, John R. H. Gilstad | 2010-05-18 |