Issued Patents All Time
Showing 1–24 of 24 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6732515 | Traveling-wave thermoacoustic engines with internal combustion | Nathan Thomas Weiland, Ben T. Zinn | 2004-05-11 |
| 6733569 | Method and apparatus for separating mixtures of gases using an acoustic wave | Drew A. Geller, Scott N. Backhaus | 2004-05-11 |
| 6666033 | Method and apparatus for fine tuning an orifice pulse tube refrigerator | John J. Wollan | 2003-12-23 |
| 6658862 | Cascaded thermoacoustic devices | Scott N. Backhaus, David L. Gardner | 2003-12-09 |
| 6644028 | Method and apparatus for rapid stopping and starting of a thermoacoustic engine | Scott N. Backhaus, David L. Gardner | 2003-11-11 |
| 6637211 | Circulating heat exchangers for oscillating wave engines and refrigerators | Scott N. Backhaus | 2003-10-28 |
| 6564552 | Drift stabilizer for reciprocating free-piston devices | William Ward, John A. Corey | 2003-05-20 |
| 6560970 | Oscillating side-branch enhancements of thermoacoustic heat exchangers | — | 2003-05-13 |
| 6164073 | Method and apparatus for adapting steady flow with cyclic thermodynamics | Robert Stephen Reid, William Ward | 2000-12-26 |
| 6032464 | Traveling-wave device with mass flux suppression | Scott N. Backhaus, David L. Gardner | 2000-03-07 |
| 6021643 | Pulse tube refrigerator with variable phase shift | David L. Gardner | 2000-02-08 |
| 5953920 | Tapered pulse tube for pulse tube refrigerators | Jeffrey R. Olson | 1999-09-21 |
| 5456082 | Pin stack array for thermoacoustic energy conversion | Robert M. Keolian | 1995-10-10 |
| 5172554 | Superfluid thermodynamic cycle refrigerator | Vincent Kotsubo | 1992-12-22 |
| 4953366 | Acoustic cryocooler | Richard A. Martin, Ray Radenbaugh | 1990-09-04 |
| 4858441 | Heat-driven acoustic cooling engine having no moving parts | John C. Wheatley, Albert Migliori, Thomas J. Hofler | 1989-08-22 |
| 4722201 | Acoustic cooling engine | Thomas J. Hofler, John C. Wheatley, Albert Migliori | 1988-02-02 |
| 4599551 | Thermoacoustic magnetohydrodynamic electrical generator | John C. Wheatley, Albert Migliori | 1986-07-08 |
| 4577414 | Remotely readable fiber optic compass | Albert Migliori, Steven L. Garrett | 1986-03-25 |
| 4560849 | Feedback regulated induction heater for a flowing fluid | Albert Migliori | 1985-12-24 |
| 4538464 | Method of measuring reactive acoustic power density in a fluid | John C. Wheatley, Albert Migliori | 1985-09-03 |
| 4516632 | Microchannel crossflow fluid heat exchanger and method for its fabrication | Albert Migliori, John C. Wheatley | 1985-05-14 |
| 4489553 | Intrinsically irreversible heat engine | John C. Wheatley, Albert Migliori | 1984-12-25 |
| 4398398 | Acoustical heat pumping engine | John C. Wheatley, Albert Migliori | 1983-08-16 |