Issued Patents All Time
Showing 25 most recent of 91 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10954921 | Shadow detection | — | 2021-03-23 |
| 10910841 | Method and system for power grid voltage regulation by distributed energy resources | Najlae M. Yazghi | 2021-02-02 |
| 10630079 | Fault ride-through capability for wind turbine | John Amos | 2020-04-21 |
| 10042374 | Method and apparatus for determining a weakened grid condition and controlling a power plant in a manner appropriate to the grid condition | Najlae M. Yazghi, Hongtao Ma, William F. Clark, Jr. | 2018-08-07 |
| 9871382 | Method and controller for continuously operating a plurality of electric energy generating machines during a high voltage condition | Najlae M. Yazghi, William F. Clark, Jr. | 2018-01-16 |
| 9593672 | Isochronous wind turbine generator capable of stand-alone operation | Jesper Hammelsvang, Hongtao Ma, Jakob Skjoeth | 2017-03-14 |
| 9570916 | Inertial response function for grids with high turbine penetration | Kaj Skov Nielsen | 2017-02-14 |
| 9541062 | Method of operating a wind park | Bo Yin, Björn Andresen, Michael Stoettrup, Per Egedal | 2017-01-10 |
| 9478987 | Power oscillation damping employing a full or partial conversion wind turbine | — | 2016-10-25 |
| 9458828 | Controlling wind power plant with negative power capability to respond to grid frequency instability | Kaj Skov Nielsen, Hongtao Ma | 2016-10-04 |
| 9450416 | Wind turbine generator controller responsive to grid frequency change | Hongtao Ma, Najlae M. Yazghi, William F. Clark, Jr. | 2016-09-20 |
| 9318283 | Apparatus including a circuit breaker adapted to selectively provide arc flash protection in connection with a wind turbine | Edmund B. Becker, III | 2016-04-19 |
| 9190845 | Method and apparatus for adaptively controlling wind park turbines | Hongtao Ma | 2015-11-17 |
| 9178357 | Power generation and low frequency alternating current transmission system | — | 2015-11-03 |
| 8988907 | Compensating element connected to a power line through an autotransformer | — | 2015-03-24 |
| 8823193 | Method and system for limitation of power output variation in variable generation renewable facilities | Najlae M. Yazghi, Hongtao Ma, William F. Clark, Jr. | 2014-09-02 |
| 8688286 | Method for maintaining an optimal amount of energy derived from a power generation system in a storage device | Bryan T. Lin | 2014-04-01 |
| 8557838 | Immune response modifier formulations containing oleic acid and methods | Alexis S. Statham | 2013-10-15 |
| 8558405 | Method and system for operating and controlling a wind turbine to prevent excitation of subsynchronous oscillations within the wind turbine | Paul Brian Brogan | 2013-10-15 |
| 8301311 | Frequency-responsive wind turbine output control | — | 2012-10-30 |
| 8219256 | Bang-bang controller and control method for variable speed wind turbines during abnormal frequency conditions | John Amos, Hongtao Ma | 2012-07-10 |
| 8080560 | Immune response modifier formulations containing oleic acid and methods | Alexis S. Statham | 2011-12-20 |
| 7999433 | Rotor winding shield for a superconducting electric generator | Jiping Zhang, Peter J. Clayton, William R. McCown | 2011-08-16 |
| 7939555 | Method of preparing a pharmaceutical cream and minimizing imiquimod impurity formation | Alexis S. Statham | 2011-05-10 |
| 7928116 | Method of treating actinic keratosis | Alexis S. Statham | 2011-04-19 |