Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10474252 | Electronic pen | — | 2019-11-12 |
| 7004660 | Closure cap with refilling function | — | 2006-02-28 |
| 5062547 | Volume measurement and dosage device | Paul Zahner | 1991-11-05 |
| 4715237 | Process and apparatus for quantitative and/or qualitative analysis of liquids | Paul Zaehner, Wolfgang Richter | 1987-12-29 |