Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8939903 | Measurement of emotional response to sensory stimuli | Elaine Wong | 2015-01-27 |
| 6094799 | Method of making double diaphragm compound shaft | Matthew J. Stewart, Dennis H. Weissert, Robert W. Bosley | 2000-08-01 |
| 6037687 | Double diaphragm compound shaft | Matthew J. Stewart, Dennis H. Weissert, Robert W. Bosley | 2000-03-14 |
| 5964663 | Double diaphragm compound shaft | Matthew J. Stewart, Dennis H. Weissert, Robert W. Bosley | 1999-10-12 |
| D344289 | Color chip for a kit to objectively demonstrate color characteristics | — | 1994-02-15 |
| 5182616 | Color communication kits | Elaine E. Roberts | 1993-01-26 |
| 5143212 | Gemstone color communication kits | Elaine E. Roberts | 1992-09-01 |
| D328612 | Simulated gemstone color guide | Elaine E. Roberts | 1992-08-11 |