Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6317629 | Iontophoretic drug delivery apparatus | Ronald P. Haak, J. Richard Gyory, Felix A. Landrau, Harold F. Sanders, Lothar W. Kleiner +1 more | 2001-11-13 |
| 5618265 | Iontophoretic delivery device with single lamina electrode | Felix A. Landrau | 1997-04-08 |
| 5543098 | Iontophoretic delivery device and method of making same | Felix A. Landrau | 1996-08-06 |
| 5466217 | Iontophoretic drug delivery apparatus | Ronald P. Haak, Richard W. Plue | 1995-11-14 |
| 5405317 | Iontophoretic delivery device | Mark G. Stahl, Felix A. Landrau, J. Richard Gyory | 1995-04-11 |
| 5385543 | Iontophoretic delivery device and method of hydrating same | Ronald P. Haak, J. Richard Gyory, Felix Theeuwes | 1995-01-31 |
| 5320598 | Iontophoretic delivery device and method of hydrating same | Ronald P. Haak, J. Richard Gyory, Felix Theeuwes, Felix A. Landrau, Nathan Roth | 1994-06-14 |
| 5312326 | Iontophoretic drug delivery apparatus | Ronald P. Haak, Richard W. Plue | 1994-05-17 |
| 5288289 | Iontophoretic delivery device and method of hydrating same | Ronald P. Haak, J. Richard Gyory, Felix Theeuwes, Felix A. Landrau, Nathan Roth | 1994-02-22 |
| 5158537 | Iontophoretic delivery device and method of hydrating same | Ronald P. Haak, J. Richard Gyory, Felix Theeuwes, Felix A. Landrau, Nathan Roth | 1992-10-27 |
| 5147297 | Iontophoretic delivery device | Mark G. Stahl | 1992-09-15 |
| 4433958 | Permanent dental restorative material | Robert P. Fellman, Marvin J. Hurwitz, Gerald F. Slack | 1984-02-28 |
| 4419277 | Treated polyacetylene | — | 1983-12-06 |
| 4230827 | Ethylene oxide polymers as impact modifiers for PVC | — | 1980-10-28 |