Issued Patents All Time
Showing 1–23 of 23 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9520808 | Method and system for power conversion | Allen Michael Ritter, Robert Allen Seymour, Rajib Datta | 2016-12-13 |
| 8736207 | Method and system for power conversion | Allen Michael Ritter, Robert Allen Seymour, Rajib Datta | 2014-05-27 |
| 7940131 | Apparatus, method and computer program product for tracking information in an electric grid | Haiqing Weng, Robert Allen Seymour, Allen Michael Ritter, Xiaoming Yuan, Renchang Dai +1 more | 2011-05-10 |
| 7633775 | Power conversion system and method | Rajib Datta, Allen Michael Ritter, Kunlun Chen | 2009-12-15 |
| 7629705 | Method and apparatus for operating electrical machines | Sidney Allen Barker, Anthony Michael Klodowski, Einar Vaughn Larsen, Goran Drobnjak | 2009-12-08 |
| 7528505 | Systems and methods for balancing of DC link in three level PWM power conversion equipment | Allen Michael Ritter, Cyrus David Harbourt, Rafael Ignacio Bedia | 2009-05-05 |
| 7456695 | Apparatus, method and computer program product for tracking information in an electric grid | Haiqing Weng, Robert Allen Seymour, Allen Michael Ritter, Xiaoming Yuan, Renchang Dai +1 more | 2008-11-25 |
| 7423412 | Method, apparatus and computer program product for injecting current | Haiqing Weng, Robert Allen Seymour, Allen Michael Ritter, Xiaoming Yuan, Renchang Dai +1 more | 2008-09-09 |
| 7239036 | System and method for power control in wind turbines | Anthony Michael Klodowski, Allen Michael Ritter, David Smith, Robert Gregory Wagoner, Luis Jose Garces +1 more | 2007-07-03 |
| 4764713 | Method for starting a variable voltage inverter with a pre-spinning load motor | William Giewont | 1988-08-16 |
| 4761600 | Dynamic brake control | William Giewont | 1988-08-02 |
| 4698577 | Method of digital flux reconstruction with DC elimination | Robert Allen Seymour, Allen Michael Ritter, Richard A. Kellogg | 1987-10-06 |
| 4633241 | Method of automated in-place SCR testing | Jordan Brantley Casteel, Allen Michael Ritter, Kenneth W. Wadding | 1986-12-30 |
| 4507723 | Method for adaptive control in a power converter operating in a discontinuous current mode | William D. Brackman, Jr., Loren H. Walker | 1985-03-26 |
| 4475150 | Coordinated load commutated inverter protection system | Paul M. Espelage, David L. Lippitt, Loren H. Walker | 1984-10-02 |
| 4473790 | Control circuit for suppression of line resonances in current feedback pulse width modulation control systems with a minimum d-c filter | Allan B. Plunkett, Allen Michael Ritter, Luis Jose Garces | 1984-09-25 |
| 4449088 | Commutation failure correction scheme for a controlled current inverter | John H. Cutler, Loren H. Walker | 1984-05-15 |
| 4431957 | Method and apparatus for generating signals representing motor flux in an AC motor | B. Paul Chausse | 1984-02-14 |
| 4420719 | Cross-tied current regulator for load commutated inverter drives | Loren H. Walker | 1983-12-13 |
| 4298831 | Method and apparatus for operating a plurality of parallel coupled, arbitrarily loaded induction machines from a single controlled current inverter | Paul M. Espelage | 1981-11-03 |
| 4243927 | Gain normalization technique for controlled current induction motor system | — | 1981-01-06 |
| 4215304 | Motor/brake transitioning for an inverter driven a-c induction motor | Dennis F. Williamson | 1980-07-29 |
| 4215305 | Excitation commanding for current fed motor drives | Allan B. Plunkett | 1980-07-29 |