Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D440154 | Bottle inversion cap | Paul J. Ricard, David M. Kroll, Robert Engman | 2001-04-10 |
| D431467 | Bottle inversion cap | Paul J. Ricard, David M. Kroll, Robert Engman, Michael J. Dooney | 2000-10-03 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D440154 | Bottle inversion cap | Paul J. Ricard, David M. Kroll, Robert Engman | 2001-04-10 |
| D431467 | Bottle inversion cap | Paul J. Ricard, David M. Kroll, Robert Engman, Michael J. Dooney | 2000-10-03 |