Issued Patents All Time
Showing 26–40 of 40 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11125034 | Variable frequency drive configuration for electric driven hydraulic fracking system | John Fischer, David Kubricht, Richard Cheatham, Jeffrey Pollack, Chad Lawman +2 more | 2021-09-21 |
| 11053758 | Electric driven hydraulic fracking system | John Fischer, David Kubricht, Richard Cheatham, Jeffrey Pollack, Chad Lawman +2 more | 2021-07-06 |
| 10989031 | Power distribution trailer for an electric driven hydraulic fracking system | John Fischer, David Kubricht, Richard Cheatham, Jeffrey Pollack, Chad Lawman +2 more | 2021-04-27 |
| 10988998 | Electric driven hydraulic fracking operation | John Fischer, David Kubricht, Richard Cheatham, Jeffrey Pollack, Chad Lawman +2 more | 2021-04-27 |
| 10982498 | Parameter monitoring and control for an electric driven hydraulic fracking system | John Fischer, David Kubricht, Richard Cheatham, Jeffrey Pollack, Chad Lawman +2 more | 2021-04-20 |
| 10975641 | Variable frequency drive configuration for electric driven hydraulic fracking system | John Fischer, David Kubricht, Richard Cheatham, Jeffrey Pollack, Chad Lawman +2 more | 2021-04-13 |
| 10876358 | Variable frequency drive configuration for electric driven hydraulic fracking system | John Fischer, David Kubricht, Richard Cheatham, Jeffrey Pollack, Chad Lawman +2 more | 2020-12-29 |
| 10871045 | Parameter monitoring and control for an electric driven hydraulic fracking system | John Fischer, David Kubricht, Richard Cheatham, Jeffrey Pollack, Chad Lawman +2 more | 2020-12-22 |
| 10851635 | Electric driven hydraulic fracking system | John Fischer, David Kubricht, Richard Cheatham, Jeffrey Pollack, Chad Lawman +2 more | 2020-12-01 |
| 10794165 | Power distribution trailer for an electric driven hydraulic fracking system | John Fischer, David Kubricht, Richard Cheatham, Jeffrey Pollack, Chad Lawman +2 more | 2020-10-06 |
| 10753153 | Variable frequency drive configuration for electric driven hydraulic fracking system | John Fischer, David Kubricht, Richard Cheatham, Jeffrey Pollack, Chad Lawman +2 more | 2020-08-25 |
| 10753165 | Parameter monitoring and control for an electric driven hydraulic fracking system | John Fischer, David Kubricht, Richard Cheatham, Jeffrey Pollack, Chad Lawman +2 more | 2020-08-25 |
| 10738580 | Electric driven hydraulic fracking system | John Fischer, David Kubricht, Richard Cheatham, Jeffrey Pollack, Chad Lawman +2 more | 2020-08-11 |
| 4797604 | Wire length meter suppling current to a wire from which a signal representative of length is derived | Joseph Rocci, Kent L. Earle, David W. Kirby | 1989-01-10 |
| 4795936 | Driven rotary shaft system using permanent magnets | Kent L. Earle, Anthony Jordan | 1989-01-03 |