| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 4 | |
| #2 | Australia | 2 | |
| #3 | WIPO (World Intellectual Property Organization) | 2 | |
| #4 | South Africa | 2 | |
| #5 | Brazil | 1 | |
| #6 | China | 1 | |
| #7 | Egypt | 1 | |
| #8 | EPO (European Patent Office) | 1 | |
| #9 | Spain | 1 | |
| #10 | Greece | 1 | |
| #11 | India | 1 | |
| #12 | Morocco | 1 | |
| #13 | African Intellectual Property Organization | 1 | |
| #14 | Portugal | 1 | |
| #15 | Tunisia | 1 | |
| #16 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Environmental technology | |
| #2 | Surface technology and coating | |
| #3 | Machines | |
| #4 | Optics |
| # | Technology | |
|---|---|---|
| #1 | Solar heat collectors | |
| #2 | Reduction of greenhouse gas emissions | |
| #3 | Unspecified technologies | |
| #4 | Layered products | |
| #5 | Optical systems |
| # | Name | Total Patents |
|---|---|---|
| #1 | Costard Hellmuth | 16 |
| #2 | Hellmuth Costard | 4 |
| Publication | Filing date | Title |
|---|---|---|
| DE19619021A1 | Method for producing parabolic mirror from plate glass pane | |
| DE4332237A1 | Concave mirror | |
| DE4019128A1 | Adjustable sunlight reflector system - has three flexible bars for each mirror clamped in bushes in supporting plate | |
| DE3734373C1 | Lightweight construction element with cover plates held at a distance by honeycomb-shaped hollow bodies |