| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 8 | |
| #2 | Austria | 3 | |
| #3 | Switzerland | 3 | |
| #4 | Denmark | 1 |
| # | Industry | |
|---|---|---|
| #1 | Machines | |
| #2 | Mechanical elements | |
| #3 | Machine tools | |
| #4 | Civil engineering | |
| #5 | Measurement |
| # | Technology | |
|---|---|---|
| #1 | Shaping of plastics | |
| #2 | Machines for making railways | |
| #3 | Shafts | |
| #4 | Mechanically-driven clocks | |
| #5 | Clutches and brakes | |
| #6 | Making screws | |
| #7 | Making forged metal products | |
| #8 | Shaping clay | |
| #9 | Preparation of materials |
| # | Name | Total Patents |
|---|---|---|
| #1 | Bisterfeld Ernst | 12 |
| #2 | Ernst Bisterfeld | 3 |
| #3 | Mickley Otto Dr | 1 |
| #4 | Christian Schmid | 1 |
| #5 | Prof Mickley Otto Dr | 1 |
| #6 | Hans Roehrig | 1 |
| Publication | Filing date | Title |
|---|---|---|
| DE852447C | Device for preheating and dividing hardenable plastics |