| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 5 | |
| #2 | WIPO (World Intellectual Property Organization) | 4 | |
| #3 | EPO (European Patent Office) | 3 | |
| #4 | United States | 3 | |
| #5 | Australia | 2 | |
| #6 | German Democratic Republic | 1 | |
| #7 | Norway | 1 | |
| #8 | South Africa | 1 |
| # | Industry | |
|---|---|---|
| #1 | Packaging and shipping | |
| #2 | Furniture and games | |
| #3 | Control | |
| #4 | Environmental technology | |
| #5 | Agriculture | |
| #6 | Consumer goods |
| # | Technology | |
|---|---|---|
| #1 | Containers for goods storage | |
| #2 | Toys | |
| #3 | Teaching materials | |
| #4 | Climate change mitigation in goods production | |
| #5 | Horticulture | |
| #6 | Games | |
| #7 | Office accessories |
| # | Name | Total Patents |
|---|---|---|
| #1 | Kroeber Lutz | 19 |
| #2 | Lutz Kroeber | 1 |
| Publication | Filing date | Title |
|---|---|---|
| AU7693791A | Game for learning multiplication tables | |
| DE4017117A1 | Instant glue tube - with end piece and protective cap made of specified shape and of specified plastic material | |
| DE4013932A1 | 1 x 1 - educational game | |
| ZA8803883B | Tube for adhesive material | |
| US5105985A | Squeezable tube with pressure operated outlet element | |
| DE3406073A1 | Figure placement game | |
| DE3207253A1 | GAME KIT | |
| DE3117262A1 | HYDROTANK FOR HYDROCULTURES |