Issued Patents All Time
Showing 26–50 of 65 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10167865 | Hydraulic pumping system with enhanced piston rod sealing | Jeffrey J. Lembcke | 2019-01-01 |
| 10167707 | Rod string rotation during well pumping operations | James S. Trapani, Jeffrey J. Lembcke, Benson Thomas, Kyle C. Brosch | 2019-01-01 |
| 10113544 | Long-stroke pumping unit | Jeffrey J. Lembcke, Victoria M. Pons, William Kevin Hall, John Edward Stachowiak, Jr., Benson Thomas +3 more | 2018-10-30 |
| 9903187 | Hydraulic pumping system with enhanced piston rod sealing | Kenneth J. Schmitt | 2018-02-27 |
| 9739275 | Self-cleaning disc valve for piston pump | John Kelleher, Michael C. Knoeller, Jeff Lembcke | 2017-08-22 |
| 9441457 | Indexing sleeve for single-trip, multi-stage fracing | Robert Coon, Robert Malloy | 2016-09-13 |
| 8505639 | Indexing sleeve for single-trip, multi-stage fracing | Robert Coon, Robert Malloy | 2013-08-13 |
| 8403068 | Indexing sleeve for single-trip, multi-stage fracing | Robert Coon, Robert Malloy | 2013-03-26 |
| 8303272 | Hydraulically actuated downhole pump with gas lock prevention | Toby Pugh, John Kelleher | 2012-11-06 |
| 7283060 | Control apparatus for automated downhole tools | Scott Weatherill | 2007-10-16 |
| 7063143 | Docking station assembly and methods for use in a wellbore | Frederick T. Tilton, Charles Brunet, David M. Haugen, Michel Bouchard, Clayton Plucheck +2 more | 2006-06-20 |
| 7038332 | Power discriminating systems | Neal G. Skinner, John J. Goiffon, Charles M. Pool | 2006-05-02 |
| 6994162 | Linear displacement measurement method and apparatus | — | 2006-02-07 |
| 6812811 | Power discriminating systems | Neal G. Skinner, John J. Goiffon, Charles M. Pool | 2004-11-02 |
| 6768214 | Vibration based power generator | Roger L. Schultz, Robert Michael, Paul D. Ringgenberg | 2004-07-27 |
| 6755249 | Apparatus and method for perforating a subterranean formation | Robert C. Pahmiyer, Paul D. Ringgenberg | 2004-06-29 |
| 6684951 | Sand screen with integrated sensors | Henry L. Restarick, Roger L. Schultz | 2004-02-03 |
| 6619394 | Method and apparatus for treating a wellbore with vibratory waves to remove particles therefrom | Mohamed Soliman, Ali Mese, James R. Birchak, Paul F. Rodney, Wei Han +3 more | 2003-09-16 |
| 6588505 | Methods and associated apparatus for downhole data retrieval, monitoring and tool actuation | Harold Kent Beck, Arthur Isadore Burke, Ian Colin Phillips, Elbert Juan Smith, Tance Jackson | 2003-07-08 |
| 6554064 | Method and apparatus for a sand screen with integrated sensors | Henry L. Restarick, Roger L. Schultz | 2003-04-29 |
| 6504258 | Vibration based downhole power generator | Roger L. Schultz, Paul D. Ringgenberg, Robert Michael, Russell Irving Bayh, III | 2003-01-07 |
| 6497280 | Methods and associated apparatus for downhole data retrieval, monitoring and tool actuation | Harold Kent Beck, Arthur Isadore Burke, Ian Colin Phillips, Elbert Juan Smith, Tance Jackson | 2002-12-24 |
| 6481505 | Methods and associated apparatus for downhole data retrieval, monitoring and tool actuation | Harold Kent Beck, Arthur Isadore Burke, Ian Colin Phillips, Elbert Juan Smith, Tance Jackson | 2002-11-19 |
| 6435282 | Annular flow safety valve and methods | Paul D. Ringgenberg | 2002-08-20 |
| 6408943 | Method and apparatus for placing and interrogating downhole sensors | Roger L. Schultz, Russell Irving Bayh, III, Benjamin Stewart, Brian Nutley, Jamie Oag +1 more | 2002-06-25 |