Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7565797 | Systems and methods for varying the thrust of rocket motors and engines while maintaining higher efficiency using moveable plug nozzles | Thomas Adrian Groudle, Richard D. Smith | 2009-07-28 |
| 5800717 | Water and wastewater treatment system with internal recirculation | Stephen R. Ramsay | 1998-09-01 |