Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7536874 | Jewelry item with rotating gemstone | Joseph C. Koll | 2009-05-26 |
| 6883961 | Hinged electronic watch | — | 2005-04-26 |
| 6835049 | Occlusion detector for rotary peristaltic pump | — | 2004-12-28 |
| 6295250 | Time-setting mechanism for clock movement with perpetual julian date | Christian Taillard | 2001-09-25 |
| 6203296 | Miniature peristaltic pump | Christian Taillard | 2001-03-20 |
| 6118734 | Train of clockwork with perpetual Julian date | Christian Taillard | 2000-09-12 |
| 6109895 | Portable peristaltic pump | Christian Taillard | 2000-08-29 |
| 4924453 | Watch having a glass retaining strap | Michiel Groothuis | 1990-05-08 |
| 4910720 | Watch having a visible energy producing oscillatory mass | Michiel Groothuis | 1990-03-20 |
| 4748603 | Chronograph watch | Michiel Groothuis | 1988-05-31 |
| 4681464 | Timepiece movement including a plurality of stepping motors and an electronic time base | — | 1987-07-21 |
| 4545688 | Watch case having synthetic material seals between detachable parts thereof | Walter Schaeren | 1985-10-08 |
| 4322834 | Watch case with interengaging flanged glass and flanged casing ring | Walter Schaeren | 1982-03-30 |