Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6073534 | Transfer mechanism and method for uploading and downloading propellant charges and projectiles | — | 2000-06-13 |
| 4388048 | Stepping type unloading system for helical screw rotary compressor | David N. Shaw | 1983-06-14 |
| 4342199 | Screw compressor slide valve engine RPM tracking system | David N. Shaw | 1982-08-03 |
| 4220197 | High speed variable delivery helical screw compressor/expander automotive air conditioning and waste heat energy _recovery system | Donald D. Schaefer, David N. Shaw | 1980-09-02 |