Ludwig Wilhelm
Inventor
Stats
- 6 US patents issued
- 6 US Applications filed
- most recent filing
This is official USPTO record data
Details
- 6 US Patents Issued
- 6 US Applications Filed
- 34 Total Citation Count
- Nov 25, 1991 Most Recent Filing
- Sep 9, 1987 Earliest Filing
Work History
| Patent Owner | Applications Filed | Year |
|---|---|---|
| Georg Fischer Aktiengesellschaft | 1
1 1 3 | 1987
1989 1990 1991 |
Inventor Addresses
| Address | Duration |
|---|---|
| Engen, DE | Feb 13, 90 - Nov 17, 92 |
Technology Profile
| Technology | Matters | |
|---|---|---|
| B02C: | CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN | 2 |
| B03B: | SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS | 1 |
| B07B: | SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, OR SIFTING OR BY USING GAS CURRENTS; OTHER SEPARATING BY DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL | 1 |
Patents / Publication
| Patents / Publication # | Year of Publication / Issued | Title | Citations |
|---|---|---|---|
| 5163562 | 1992 | Process for reclaiming bentonite and carbon particles from used foundry sand | 12 |
| 5115985 | 1992 | Method for the regenerative treatment of mainly clay-bound foundry old sand | 2 |
| 5114474 | 1992 | Arrangement and method for introducing waste material into a molten slag | 4 |
| 5103894 | 1992 | Process for the treatment of clay-bonded used casting sand | 0 |
| 5091624 | 1992 | Method of flash butt welding high-carbon material, in particular nodular cast iron | 2 |
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