| # | Industry | |
|---|---|---|
| #1 | Thermal processes | |
| #2 | Machines | |
| #3 | Packaging and shipping | |
| #4 | Environmental technology |
| # | Name | Total Patents |
|---|---|---|
| #1 | Keller Dipl-Ing Walther | 7 |
| #2 | Loemke Dr-Ing Heinrich | 4 |
| #3 | Schumacher Hermann | 4 |
| #4 | Loemke Heinrich Dr-Ing | 2 |
| #5 | Kerk Ehrhardt | 2 |
| #6 | Tjardes Berthold | 2 |
| #7 | Keller Walther Dipl-Ing | 2 |
| #8 | Keller Dipl-Ing Walter | 1 |
| Publication | Filing date | Title |
|---|---|---|
| DE693261C | Schlaegerkopf for Schlaegermuehlen | |
| DE678777C | Mill firing | |
| DE645232C | Schlaegermuehle | |
| DE656871C | Dust firing with Schlaegermuehle and classifier chamber | |
| DE660274C | Dust firing with Schlaegermuehlen and immediately adjacent viewing chambers | |
| DE661320C | Schlaegermuehle | |
| DE648754C | Sieve-free Schlaegermuehle | |
| DE656969C | Beat mills for mill firing | |
| DE654956C | Schlaegermuehle with attached drying and viewing chamber |