Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4595308 | Writing insert with sealing cap | Harald Schiefnetter, Richard E. Meyer | 1986-06-17 |
| 4231669 | Device for receiving a writing implement | Karl-Heinz Farber, Herbert Grimm, Helmut Schmeisser, Hermann Schonhut, Svatopluk Krumnikl +1 more | 1980-11-04 |