Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9669146 | Gas / fluid mass exchange apparatus | William Richard Johns, Stephen Warwick James Brown, Dale Rogers | 2017-06-06 |
| 7634903 | Ion impulse engine | — | 2009-12-22 |
| 5537923 | Printing sleeve air pressure mounting apparatus | Royal E. Boor, Craig S. Finley, Stephen D. Burt | 1996-07-23 |
| 5005361 | Ion repulsion turbine | — | 1991-04-09 |
| 4741217 | Magnetic field coupling circuit and rotary transducer using same | Paul W. Morgan | 1988-05-03 |
| 4246866 | Apparatus for applying a pattern on a substrate | Donald B. Hopings | 1981-01-27 |