Issued Patents All Time
Showing 1–25 of 32 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12257917 | Systems, apparatus and methods for electric vehicle charging via a power conversion system | Josh Keister, Lyle T. Keister | 2025-03-25 |
| 12083913 | Systems, apparatus and methods for electric vehicle charging via a power conversion system | Josh Keister, Lyle T. Keister | 2024-09-10 |
| 11919416 | Systems, apparatus and methods for electric vehicle charging via a power conversion system | Josh Keister, Lyle T. Keister | 2024-03-05 |
| 11648844 | Systems, apparatus and methods for electric vehicle charging via a power conversion system | Josh Keister, Lyle T. Keister | 2023-05-16 |
| 11557957 | Configurable power module for AC and DC applications | Lyle T. Keister, Josh Keister | 2023-01-17 |
| 11509233 | Surge voltage protection for a power conversion system | Josh Keister, Lyle T. Keister | 2022-11-22 |
| 11370314 | Insulation system for reducing partial discharge in medium voltage power converter | Josh Keister, Lyle T. Keister | 2022-06-28 |
| 11292352 | Systems, apparatus and methods for electric vehicle charging via a power conversion system | Josh Keister, Lyle T. Keister | 2022-04-05 |
| 10184534 | Frictionless electromagnetic braking system | — | 2019-01-22 |
| 9991706 | Portable alternating current inverter having reduced imipedance losses | Daniele C. Brotto, Nathan J. Cruise, Erik Ekstrom, Ren Wang, William D. Spencer +3 more | 2018-06-05 |
| RE46827 | Hybrid impact tool with two-speed transmission | Scott M. Rudolph, Sankarshan Murthy, Daniel Puzio, Qiang Zhang, Aris C. Cleanthous +2 more | 2018-05-08 |
| 9609777 | Pluggable power cell for an inverter | Enrique Ledezma, Thomas Keister, Ryan Edwards, Alex Skorcz, Randall Pipho +1 more | 2017-03-28 |
| 9344008 | Portable alternating current inverter having reduced impedance losses | Daniele C. Brotto, Nathan J. Cruise, Erik Ekstrom, Ren Wang, William D. Spencer +3 more | 2016-05-17 |
| 9220179 | Pluggable power cell for an inverter | Enrique Ledezma, Thomas Keister, Ryan Edwards, Alex Skorcz, Randall Pipho +1 more | 2015-12-22 |
| 9166422 | Battery based portable power supply | Daniele C. Brotto, Nathan J. Cruise, Erik Ekstrom, Pradeep M. Pant, David A. Carrier +7 more | 2015-10-20 |
| 8994336 | Portable alternating current inverter having reduced impedance losses | Daniele C. Brotto, Nathan J. Cruise, Erik Ekstrom, Ren Wang, William D. Spencer +3 more | 2015-03-31 |
| 8711530 | Pluggable power cell for an inverter | Enrique Ledezma, Thomas Keister, Ryan Edwards, Alex Skorcz, Randall Pipho +1 more | 2014-04-29 |
| 8601190 | Providing multiple communication protocols for a control system having a master controller and a slave controller | Randall Pipho, Ryan Edwards, Enrique Ledezma, Alex Skorcz, Thomas Keister | 2013-12-03 |
| 8575479 | Providing a transformer for an inverter | Manzoor Hussain | 2013-11-05 |
| 8460153 | Hybrid impact tool with two-speed transmission | Scott M. Rudolph, Sankarshan Murthy, Daniel Puzio, Qiang Zhang, Aris C. Cleanthous +1 more | 2013-06-11 |
| 8279640 | Modular multi-pulse transformer rectifier for use in symmetric multi-level power converter | Ryan Edwards, Thomas Keister, Alex Skorcz, Enrique Ledezma, Chao Hsu Liao | 2012-10-02 |
| 8254076 | Providing modular power conversion | Enrique Ledezma, Thomas Keister, Ryan Edwards, Alex Skorcz, Randall Pipho +1 more | 2012-08-28 |
| 8223515 | Pre-charging an inverter using an auxiliary winding | Thomas Keister, Alex Skorcz, Ryan Edwards, Enrique Ledezma | 2012-07-17 |
| 8213198 | Partial regeneration in a multi-level power inverter | Thomas Keister, Alex Skorcz, Enrique Ledezma, Ryan Edwards | 2012-07-03 |
| 8129853 | Power converter for use with wind generator | Thomas Keister, Haran Karmaker, Ryan Edwards, Enrique Ledezma, Alex Skorcz | 2012-03-06 |