Issued Patents All Time
Showing 1–19 of 19 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4998352 | Cutting unit for a shaving apparatus | — | 1991-03-12 |
| 4894912 | Shaving apparatus | — | 1990-01-23 |
| 4882840 | Dry-shaving apparatus | — | 1989-11-28 |
| 4811484 | Dry-shaving apparatus | Willem Sjouke Wijma, Eppe Bakker, Albert Hoekstra | 1989-03-14 |
| 4811483 | Dry-shaving apparatus with self adjusting blades | Eppe Bakker | 1989-03-14 |
| 4802281 | Dry shaving apparatus | — | 1989-02-07 |
| 4707923 | Shaving apparatus | — | 1987-11-24 |
| 4577408 | Hair-cutting device | — | 1986-03-25 |
| 4510687 | Shaving apparatus | Gerrit J. Groothuis, Atze de Haan, Hendrik Poel, Jochem J. de Vries | 1985-04-16 |
| 4424628 | Shaving apparatus | Gerrit J. Groothuis | 1984-01-10 |
| 4347662 | Shaving apparatus | — | 1982-09-07 |
| 4310968 | Shaving apparatus | Dirk A. Buik | 1982-01-19 |
| 4283849 | Cutting unit for a dry-shaving apparatus | Manfred Engelhardt, Jan Reinink, Jochem J. de Vries | 1981-08-18 |
| 4275497 | Shaving apparatus | Manfred Engelhardt, Jan Reinink, Jochem J. de Vries, Ferdinand M. Trees, Gerrit J. Groothuis | 1981-06-30 |
| 4272884 | Shaving apparatus | — | 1981-06-16 |
| 4261101 | Shaving apparatus with lead cutter | Ferdinand M. Trees | 1981-04-14 |
| 4240199 | Shaving apparatus | Ebbe Boiten, Jochem J. de Vries | 1980-12-23 |
| 4222168 | Shaving apparatus | Ebbe Boiten, Jochem J. de Vries, Tjamme De Vries | 1980-09-16 |
| 4192065 | Shaving apparatus | — | 1980-03-11 |