Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7252423 | Candle with magnetically activated internal illumination | — | 2007-08-07 |
| 7098600 | Candle with internal illumination | Xiao-Feng Li, Stephen Shapiro, James Bonnema | 2006-08-29 |
| 6033212 | Lamp for dispensing volatile substances | James Bonnema, Timothy Huber, Steven Shapiro, Karl Winkler | 2000-03-07 |
| 5928605 | Device for dispensing a volatile substance | James Bonnema, Scott W. Demarest, Paul E. Furner, Donald W. Hildebrandt | 1999-07-27 |
| 5700430 | Device for dispensing a volatile substance | James Bonnema, Scott W. Demarest, Paul E. Furner, Donald W. Hildebrandt | 1997-12-23 |