| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 8 | |
| #2 | EPO (European Patent Office) | 2 | |
| #3 | Austria | 1 | |
| #4 | WIPO (World Intellectual Property Organization) | 1 |
| # | Industry | |
|---|---|---|
| #1 | Materials and metallurgy | |
| #2 | Civil engineering | |
| #3 | Audio-visual technology | |
| #4 | Packaging and shipping | |
| #5 | Mechanical elements | |
| #6 | Furniture and games |
| # | Technology | |
|---|---|---|
| #1 | Casting metal | |
| #2 | General building constructions | |
| #3 | Containers for goods storage | |
| #4 | Kitchen equipment | |
| #5 | Doors and windows | |
| #6 | Advertising | |
| #7 | Venting or aerating devices | |
| #8 | Finishing work on buildings | |
| #9 | Scaffolding |
| # | Name | Total Patents |
|---|---|---|
| #1 | Klein Friedrich | 11 |
| #2 | Klein Friedrich Prof Dr H C | 1 |
| Publication | Filing date | Title |
|---|---|---|
| DE102007058254A1 | Casting piston rod for a casting machine | |
| DE102004008157A1 | Casting machine for the production of castings |