| # | Industry | |
|---|---|---|
| #1 | Civil engineering | |
| #2 | Machines | |
| #3 | Packaging and shipping | |
| #4 | Engines, pumps and turbines |
| # | Technology | |
|---|---|---|
| #1 | Foundations and excavations | |
| #2 | Structural elements | |
| #3 | Shaping clay | |
| #4 | Containers for goods storage | |
| #5 | Shafts | |
| #6 | Scaffolding | |
| #7 | Construction of bridges | |
| #8 | Swimming pools | |
| #9 | General building constructions | |
| #10 | Steam turbines |
| # | Name | Total Patents |
|---|---|---|
| #1 | Lenk Kurt Dr-Ing | 4 |
| #2 | Lenk Dr-Ing Kurt | 4 |
| #3 | Bossich Alfred | 2 |
| #4 | Luetze Max | 1 |
| #5 | Franz Gotthard Dr-Ing | 1 |
| #6 | Jacob E | 1 |
| #7 | Ehlers Georg Dipl-Ing | 1 |
| #8 | Freytag A-G Wayss | 1 |
| #9 | Bachus Ernst Dr-Ing | 1 |
| #10 | Joerger Hans | 1 |
| Publication | Filing date | Title |
|---|---|---|
| DE879293C | Anchoring a tendon for a concrete component | |
| DE497887C | Usable as pile puller for jacking pipes |