| # | Country | Total Patents | |
|---|---|---|---|
| #1 | South Africa | 4 | |
| #2 | EPO (European Patent Office) | 3 | |
| #3 | WIPO (World Intellectual Property Organization) | 3 | |
| #4 | German Democratic Republic | 2 | |
| #5 | Germany | 1 | |
| #6 | Latvia | 1 | |
| #7 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Optics | |
| #2 | Machines | |
| #3 | Machine tools | |
| #4 | Civil engineering |
| # | Technology | |
|---|---|---|
| #1 | Optical systems | |
| #2 | Unspecified technologies | |
| #3 | Shafts | |
| #4 | Soldering, welding and flame cutting |
| # | Name | Total Patents |
|---|---|---|
| #1 | Huegenell Hermann | 15 |
| #2 | Hermann Huegenell | 4 |
| Publication | Filing date | Title |
|---|---|---|
| DE4310314A1 | Tunnelling system | |
| WO9015353A1 | Mirror telescope and process for manufacturing it | |
| ZA888548B | Primary reflector for a reflector telescope | |
| US4822156A | Reflecting telescope |