Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D730227 | Hour and minute hands for use with a clock face | — | 2015-05-26 |
| 6927331 | Method for the program-controlled visually perceivable representation of a music composition | — | 2005-08-09 |
| 4243422 | Granular quartz glass product | Arnold Lenz, Gerhard Kreuzburg | 1981-01-06 |