| # | Industry | |
|---|---|---|
| #1 | Chemical engineering | |
| #2 | Environmental technology | |
| #3 | Packaging and shipping | |
| #4 | Basic materials chemistry | |
| #5 | Measurement | |
| #6 | Mechanical elements | |
| #7 | Civil engineering |
| # | Name | Total Patents |
|---|---|---|
| #1 | Heymann Dr-Ing Hans | 15 |
| #2 | Kurz Dr Heinz | 8 |
| #3 | Riehl Heinrich | 1 |
| Publication | Filing date | Title |
|---|---|---|
| DE1054028B | Roller press with sieve belt for subsequent dewatering of sewage sludge | |
| DE404798C | Process for balancing rotating machine parts, which can cause pendulum oscillations while rotating |