Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7553466 | Method for producing highly pure, granular silicon in a fluidised bed | Heiko Herold, H. Günter Holdenried, Leslaw Mleczko, Matthias Pfaffelhuber | 2009-06-30 |
| 4269425 | Safety covering for rotary gating in articulated buses | Emil Heldmaier | 1981-05-26 |