| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 12 |
| # | Industry | |
|---|---|---|
| #1 | Chemical engineering | |
| #2 | Civil engineering | |
| #3 | Textiles and paper | |
| #4 | Mechanical elements | |
| #5 | Biotechnology |
| # | Technology | |
|---|---|---|
| #1 | Separation | |
| #2 | Structural elements | |
| #3 | Pipes | |
| #4 | Calendars | |
| #5 | Microorganisms | |
| #6 | Textile treatments | |
| #7 | Paper-making machines | |
| #8 | Drying solid materials by removing liquid |
| # | Name | Total Patents |
|---|---|---|
| #1 | Hoening Dipl-Volksw Heinz | 4 |
| #2 | Fest Erich | 3 |
| #3 | Fischer Rudolf Dipl-Ing | 2 |
| #4 | Rumpelt Horst Dr-Ing | 1 |
| #5 | Linke Albert | 1 |
| #6 | Schneider Dr-Ing Wilhelm | 1 |