Issued Patents All Time
Showing 25 most recent of 59 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12415551 | Method and systems for an automated railyard | Thomas Lewis, Anthony D. Paul, Ankit Mathur, Nathan Thomas North | 2025-09-16 |
| 11993267 | Alerter augmentation system | Lalit Keshav Mestha | 2024-05-28 |
| 10557693 | High voltage explosive assembly for downhole detonations | Nolan C. Lerche | 2020-02-11 |
| 10328946 | Alerter augmentation system | Lalit Keshav Mestha | 2019-06-25 |
| 9995136 | Simulating downhole flow through a perforation | Dennis J. Haggerty | 2018-06-12 |
| 9851191 | High voltage explosive assembly for downhole detonations | Nolan C. Lerche | 2017-12-26 |
| 9464508 | Interactive and/or secure activation of a tool | Nolan C. Lerche, Simon L. Farrant, Edward H. Rogers | 2016-10-11 |
| 9394767 | Transient control of wellbore pressure | Nolan C. Lerche | 2016-07-19 |
| 9371709 | Downhole severing tool | — | 2016-06-21 |
| 9279904 | Simulating downhole flow through a perforation | Dennis J. Haggerty | 2016-03-08 |
| 9140088 | Downhole severing tool | — | 2015-09-22 |
| 9057802 | Simulating downhole flow through a perforation | Dennis J. Haggerty | 2015-06-16 |
| 8931389 | High voltage explosive assembly for downhole detonations | Nolan C. Lerche | 2015-01-13 |
| 8884778 | Apparatus and methods for controlling and communicating with downhole devices | Nolan C. Lerche | 2014-11-11 |
| 8689868 | Tractor communication/control and select fire perforating switch simulations | Nolan C. Lerche, Jesper Oluf Larsen, Brian Thomsen, Kasper Juul Larsen | 2014-04-08 |
| 8576090 | Apparatus and methods for controlling and communicating with downwhole devices | Nolan C. Lerche | 2013-11-05 |
| 8549905 | Simulating downhole flow through a perforation | Dennis J. Haggerty | 2013-10-08 |
| 8230788 | Method of fabrication and use of integrated detonators | Nolan C. Lerche, Anthony Veneruso | 2012-07-31 |
| 8091477 | Integrated detonators for use with explosive devices | Nolan C. Lerche, Anthony Veneruso | 2012-01-10 |
| 7549373 | Integrated activating device for explosives | Nolan C. Lerche, Frank A. Duva | 2009-06-23 |
| 7520323 | Interactive and/or secure activation of a tool | Nolan C. Lerche, Simon L. Farrant, Edward H. Rogers | 2009-04-21 |
| 7505244 | Micro-switches for downhole use | Nolan C. Lerche, Charles Cameron Abnet, Clarence Chui, Stuart B. Brown | 2009-03-17 |
| 7431075 | Propellant fracturing of wells | Philip Kneisl, Alexander F. Zazovsky, Mark C. Duhon, Alfredo Fayard | 2008-10-07 |
| 7413015 | Perforating gun | Russell McKinnon, Daniel C. Markel, Gary L. Rytlewski | 2008-08-19 |
| 7383882 | Interactive and/or secure activation of a tool | Nolan C. Lerche, Simon L. Farrant, Edward H. Rogers | 2008-06-10 |