Issued Patents All Time
Showing 26–48 of 48 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D366257 | Mobile phone | Simon Fraser | 1996-01-16 |
| D366258 | Mobile phone | Simon Fraser | 1996-01-16 |
| D344813 | Lighting fixture | — | 1994-03-01 |
| D324274 | Adjustable desk lamp | Christian Schwamkrug | 1992-02-25 |
| D320401 | Eyeglass frame | — | 1991-10-01 |
| 5048944 | Eyeglasses with removable lens assembly | — | 1991-09-17 |
| D318879 | Pencil | — | 1991-08-06 |
| D313389 | Boat | Joerg Tragatschnig, Christian Schwamkrug | 1991-01-01 |
| D313246 | Ball-point-pen | — | 1990-12-25 |
| D312477 | Fountain pen | — | 1990-11-27 |
| D311968 | Lighter | — | 1990-11-06 |
| D311011 | Eyeglasses | — | 1990-10-02 |
| D307756 | Folding eyeglasses | — | 1990-05-08 |
| 4902119 | Eyeglasses frame with articulated resilient nose piece | — | 1990-02-20 |
| D302649 | Folding knife | Michael Rabe | 1989-08-08 |
| 4834523 | Eyeglasses with separable rims | — | 1989-05-30 |
| 4822158 | Eyeglasses with removable lens assembly | — | 1989-04-18 |
| D297121 | Sport watch | Michael Rabe | 1988-08-09 |
| D285697 | Eyeglasses | Simon Fraser, Dirk Schmauser | 1986-09-16 |
| D284356 | Chronograph | — | 1986-06-24 |
| D270243 | Chronograph | — | 1983-08-23 |
| 4230332 | Bicycle frame | — | 1980-10-28 |
| 4183206 | Portable watch, especially wristwatch | Jan H. Matthias | 1980-01-15 |