Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5038610 | Anemometer | Karlheinz Eckert, Martin Hohenstatt, Dieter Link, Otokar Prokopec | 1991-08-13 |
| 4963184 | Tooth filling material and method of its preparation | Hans-Martin Ringelstein | 1990-10-16 |
| 4892582 | Dental filling-material and method for its preparation | Hans-Martin Ringelstein | 1990-01-09 |
| 4634383 | Process and apparatus for the production of fillings in teeth | Hans-Hermann Beyer, Karlheinz Eckert, Kurt Eiermann, Hans-Martin Ringelstein | 1987-01-06 |
| 4610631 | Process for the production of fillings for teeth | Hans-Hermann Beyer, Karlheinz Eckert, Kurt Eiermann, Hans-Martin Ringelstein | 1986-09-09 |
| 4461158 | Article of jewellery | — | 1984-07-24 |
| 4381653 | Article simulating body appendage movements of insect | — | 1983-05-03 |