Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5163562 | Process for reclaiming bentonite and carbon particles from used foundry sand | Peter Rossmanith | 1992-11-17 |
| 5115985 | Method for the regenerative treatment of mainly clay-bound foundry old sand | Franz Satmer | 1992-05-26 |
| 5114474 | Arrangement and method for introducing waste material into a molten slag | Hans Schmidt | 1992-05-19 |
| 5103894 | Process for the treatment of clay-bonded used casting sand | Franz Satmer | 1992-04-14 |
| 5091624 | Method of flash butt welding high-carbon material, in particular nodular cast iron | Anton Alt, Peter Toelke, Urban Zimmermann | 1992-02-25 |
| 4900375 | Magnesium-treated, decarburizingly-annealed cast iron material | Anton Alt, Guenter Schulte, Peter Toelke | 1990-02-13 |