Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10316595 | Method and apparatus for reaming and/or stabilizing boreholes in drilling operations | Zan Svendsen | 2019-06-11 |
| D786645 | Reamer | Zan Svendsen | 2017-05-16 |
| 7669648 | Polymer shock absorber for use with well head lubricator assembly | — | 2010-03-02 |
| 7523783 | Internal shock absorber plunger | — | 2009-04-28 |
| 7513301 | Liquid aeration plunger | — | 2009-04-07 |
| 7475731 | Sand plunger | — | 2009-01-13 |
| 7438125 | Variable orifice bypass plunger | — | 2008-10-21 |
| 7383878 | Multi-part plunger | — | 2008-06-10 |
| 7290602 | Internal shock absorber bypass plunger | — | 2007-11-06 |
| 6571868 | Well head lubricator assembly with polyurethane impact-absorbing spring | — | 2003-06-03 |
| 6196324 | Casing differential pressure based control method for gas-producing wells | Jeff L. Giacomino | 2001-03-06 |
| 6032919 | Gas flow proportioning and controlling valve system | Jeff L. Giacomino | 2000-03-07 |
| 5984013 | Plunger arrival target time adjustment method using both A and B valve open times | Jeff L. Giacomino | 1999-11-16 |
| 5868554 | Flexible plunger apparatus for free movement in gas-producing wells | Jeff L. Giacomino | 1999-02-09 |