Issued Patents All Time
Showing 1–25 of 26 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10580678 | Apparatus and method for semiconductor wafer leveling, force balancing and contact sensing | Hale Johnson, Gregory George | 2020-03-03 |
| 9859141 | Apparatus and method for aligning and centering wafers | Hale Johnson, Gregory George | 2018-01-02 |
| 9837295 | Apparatus and method for semiconductor wafer leveling, force balancing and contact sensing | Hale Johnson, Gregory George | 2017-12-05 |
| 6952086 | Linear position sensing system and coil switching methods for closed-loop control of large linear induction motor systems | Mark P. Krefta, David Hall, Kenneth M. Eichler, Jiing-Liang Wu, Robert E. Strickler | 2005-10-04 |
| 5384696 | Active power line conditioner with fundamental negative sequence compensation | Steven A. Moran | 1995-01-24 |
| 5355295 | Series-parallel active power line conditioner utilizing temporary link energy boosting for enhanced peak voltage regulation capability | — | 1994-10-11 |
| 5355025 | Active power line conditioner with synchronous transformation control | Steven A. Moran | 1994-10-11 |
| 5351181 | Low cost active power line conditioner | Steven A. Moran, Laszlo Gyugyi | 1994-09-27 |
| 5351178 | Active power line conditioner with a derived load current fundamental signal for fast dynamic response | Steven A. Moran | 1994-09-27 |
| 5351180 | Highly fault tolerant active power line conditioner | Steven A. Moran, Scott K. Suko | 1994-09-27 |
| 5349517 | Active power line conditioner utilizing harmonic frequency injection for improved peak voltage regulation | — | 1994-09-20 |
| 5319535 | Active power line conditioner having capability for rejection of common-mode disturbances | — | 1994-06-07 |
| 5319534 | Series-parallel active power line conditioner utilizing reduced-turns-ratio transformer for enhanced peak voltage regulation capability | — | 1994-06-07 |
| 5287288 | Active power line conditioner with low cost surge protection and fast overload recovery | Steven A. Moran | 1994-02-15 |
| 4811236 | Transmission line voltage detector for static VAR generator | Alberto Abbondanti | 1989-03-07 |
| 4743832 | Protection system for thyristor-controlled reactors | Laszlo Gyugyi | 1988-05-10 |
| 4719402 | VAR generator system with minimal standby losses | Mark G. Gernhardt | 1988-01-12 |
| 4651265 | Active power conditioner system | Eric J. Stacey | 1987-03-17 |
| 4644248 | Line fault tolerant synchronous timing reference generator for static VAR generators | Alberto Abbondanti | 1987-02-17 |
| 4599553 | Malfunction detector for static VAR controllers | Miklos Sarkozi | 1986-07-08 |
| 4398141 | Static VAR generators | Laszlo Gyugyi, Eric J. Stacey | 1983-08-09 |
| 4394614 | Static VAR generators | Laszlo Gyugyi, Eric J. Stacey | 1983-07-19 |
| 4356441 | Voltage regulator utilizing a static VAR generator with half period averaging and saturating type firing angle control | Thomas H. Putman, Laszlo Gyugyi | 1982-10-26 |
| 4234842 | Voltage regulator and flicker compensator | Laszlo Gyugyi | 1980-11-18 |
| 4204151 | Static VAR generator with non-linear frequency dependent dynamic gain adjuster | Laszlo Gyugyi | 1980-05-20 |