Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4493137 | Method of making a drive element assembly for ink jet printing | Ferdinand Hermann, Wilhelm Ruprich, Hermann Winter | 1985-01-15 |
| 4412232 | Ink jet printer | Helmut Weber, Peter H. Reitberger, Walter Konig | 1983-10-25 |
| 4376284 | Ink jet print head | Frank Giessner, Helmut Weber | 1983-03-08 |
| 4343013 | Nozzle plate for ink jet print head | Frank Giessner, Friedrich B. Rombach, Hermann Winter | 1982-08-03 |
| 4248823 | Method of making ink jet print head | Frank Giessner, Ernst Pechinger, Friedrich B. Rombach, Wilhelm Ruprich, Helmut Weber +1 more | 1981-02-03 |
| 4223323 | Ink jet printer | Frank Giessner, Helmut Weber | 1980-09-16 |