| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Canada | 4 | |
| #2 | Germany | 4 | |
| #3 | EPO (European Patent Office) | 3 | |
| #4 | United States | 2 | |
| #5 | WIPO (World Intellectual Property Organization) | 2 |
| # | Industry | |
|---|---|---|
| #1 | Transport | |
| #2 | Machines | |
| #3 | Packaging and shipping | |
| #4 | Furniture and games | |
| #5 | Optics | |
| #6 | Civil engineering |
| # | Technology | |
|---|---|---|
| #1 | Vehicle wheels | |
| #2 | Unspecified technologies | |
| #3 | Containers for goods storage | |
| #4 | Toys | |
| #5 | Optical systems | |
| #6 | Wheelchairs and sledges | |
| #7 | Finishing work on buildings |
| # | Name | Total Patents |
|---|---|---|
| #1 | Dietrich Rolf | 15 |
| Publication | Filing date | Title |
|---|---|---|
| US2015033509A1 | Flexible connector | |
| CA2338645A1 | Tensioned spoked bicycle wheel assembly and method | |
| CA2301629A1 | Tensioned spoked bicycle wheel assembly and hub therefor | |
| CA2187695A1 | Cycle, tensioned spoked wheel assembly and hub therefor | |
| CA2136053A1 | Cycle, tensioned spoked wheel assembly and rim therefor | |
| DE4423146A1 | Plasterer's stand | |
| DE3215282A1 | Assembling game | |
| DE3208074A1 | Construction toy | |
| DE2628551A1 | Microscope photometer double beam analysis appts. - has chopper and comparator mirror between specimen and detector |