| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 35 |
| # | Industry | |
|---|---|---|
| #1 | Materials and metallurgy | |
| #2 | Civil engineering | |
| #3 | Machine tools | |
| #4 | Thermal processes | |
| #5 | Environmental technology |
| # | Technology | |
|---|---|---|
| #1 | Pig-iron processing | |
| #2 | Foundations and excavations | |
| #3 | Rolling metal | |
| #4 | Iron and steel production | |
| #5 | Furnaces | |
| #6 | Casting metal | |
| #7 | Sawing | |
| #8 | Shafts | |
| #9 | Reduction of greenhouse gas emissions | |
| #10 | Structural elements |
| # | Name | Total Patents |
|---|---|---|
| #1 | Bansen Dr-Ing Hugo | 5 |
| #2 | Loebbecke Dr-Ing Karl | 3 |
| #3 | Meyer Dr-Ing Hans | 3 |
| #4 | Spetzler Edgar | 2 |
| #5 | Brackelsberg Max | 2 |
| #6 | Berger Alfred | 2 |
| #7 | Kuehne Fritz | 1 |
| #8 | Loebbecke Dr Karl | 1 |
| #9 | Idel Emil | 1 |
| #10 | Schoenrock Dr-Ing Karl | 1 |
| Publication | Filing date | Title |
|---|---|---|
| DE477495C | Lattice work for heat storage, in which several staggered steps are provided | |
| DE465286C | Device for guiding automatic welding machines which are used to weld plates onto a base | |
| DE449223C | Reversing device for gas-heated regenerative ovens |