Chang; Liuchen
Patent Applications and Registrations
Patent applications and USPTO patent grants for Chang; Liuchen.The latest application filed is for "axial-flow turbine for low-head installations".
- Chang; Liuchen - Fredericton CA
- Chang; Liuchen - New Brunswick CA
| Patent | Date |
|---|---|
| Single-phase voltage source inverter circuit with power decoupling, and control methods Grant 11,012,002 - Xu , et al. May 18, 2 | 2021-05-18 |
| Axial-flow turbine for low-head installations Grant 11,002,242 - Martin , et al. May 11, 2 | 2021-05-11 |
| Axial-flow Turbine For Low-head Installations App 20180195489 - Martin; Joe ; et al. | 2018-07-12 |
| Stand-alone wind turbine system, apparatus, and method suitable for operating the same Grant 7,476,987 - Chang January 13, 2 | 2009-01-13 |
| Two-phase power converter apparatus and method App 20080137383 - Chang; Liuchen ; et al. | 2008-06-12 |
| Single-stage buck-boost inverter Grant 7,333,349 - Chang , et al. February 19, 2 | 2008-02-19 |
| Stand-alone wind turbine system, apparatus, and method suitable for operating the same App 20070246943 - Chang; Liuchen ; et al. | 2007-10-25 |
| System for three-phase voltage detection and protection App 20070005194 - Chang; Liuchen ; et al. | 2007-01-04 |
| Single-stage buck-boost inverter App 20050270000 - Chang, Liuchen ; et al. | 2005-12-08 |
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