Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6684508 | Shaving head with drivable hair manipulator and drivable cutting member | Rudolf Heinrich Brzesowsky, Lucien Douven, Jasper Zuidervaart | 2004-02-03 |
| 6418622 | Wet shaver with retractile action | Petrus Henricus De Leeuw, Karim Lefki | 2002-07-16 |
| 6074400 | Depilation apparatus with twisting action only | Antonius Maarten Nuijs, Robert-Han Munnig Schmidt | 2000-06-13 |
| 5980452 | Hair removal appliance with adjustable hair extraction distance | Petrus Henricus De Leeuw, Gerardus N. A. Van Veen, Paul Anton Josef Ackermans, Peter E. Wierenga | 1999-11-09 |
| 5867908 | Shaving apparatus | Gerardus N. A. Van Veen | 1999-02-09 |
| 5692303 | Shaving apparatus | Antonius A. J. Benschop, Gerardus N. A. Van Veen, Petrus Henricus De Leeuw | 1997-12-02 |
| 5346499 | Depilation apparatus and method using a vibration member to affect the function of nerves in the skin | Robert-Han Munnig Schmidt | 1994-09-13 |
| 5312419 | Depilation apparatus with twisting action | Rob Klasen, Marinus J. J. Dona | 1994-05-17 |
| 4998460 | Piston engine | Marc J. M. Wolfs | 1991-03-12 |
| 4498296 | Thermodynamic oscillator with average pressure control | Kees Dijkstra | 1985-02-12 |