Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9002694 | Verification of design derived from power intent | Xiushan Feng, Jayanta Bhadra | 2015-04-07 |
| 7223049 | Apparatus, system and method for directional degradation of a paved surface | David R. Hall, David Wahlquist, Joe Fox | 2007-05-29 |
| 6166472 | Airgap armature coils and electric machines using same | Joseph F. Pinkerton | 2000-12-26 |
| 6029538 | Replaceable bearing cartridge assembly for flywheel energy system | Joseph F. Pinkerton | 2000-02-29 |
| 5932935 | Energy storage flywheel emergency power source and methods | David B. Clifton, Joseph F. Pinkerton, James A. Andrews | 1999-08-03 |
| 5920138 | Motor/generator and axial magnetic bearing utilizing common magnetic circuit | David B. Clifton, Joseph F. Pinkerton, James A. Andrews | 1999-07-06 |
| 5905321 | Energy storage flywheel apparatus and methods | David B. Clifton, Joseph F. Pinkerton, James A. Andrews | 1999-05-18 |
| 5731645 | Integrated motor/generator/flywheel utilizing a solid steel rotor | David B. Clifton, Joseph F. Pinkerton, James A. Andrews | 1998-03-24 |
| 5471105 | Null flux magnetic bearing with cross-connected loop portions | David B. Clifton, Joseph F. Pinkerton | 1995-11-28 |
| 5345128 | Magnetic bearing with closed loops which move in AC electromagnet field and/or which include capacitors | Joseph F. Pinkerton, David B. Clifton | 1994-09-06 |
| 5208844 | Electronic devices using discrete, contained charged particle bundles and sources of same | Harold E. Puthoff, George W. Church, Jr., David B. Clifton | 1993-05-04 |