| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 20 | |
| #2 | United States | 3 | |
| #3 | United Kingdom | 2 |
| # | Industry | |
|---|---|---|
| #1 | Telecommunications | |
| #2 | Textiles and paper | |
| #3 | Audio-visual technology | |
| #4 | Digital networks | |
| #5 | Basic communication technologies | |
| #6 | Optics | |
| #7 | Consumer goods |
| # | Technology | |
|---|---|---|
| #1 | Transmission systems | |
| #2 | Typewriters | |
| #3 | Advertising | |
| #4 | Cameras | |
| #5 | Modulation | |
| #6 | Machines for artistic work | |
| #7 | Digital information transmission |
| # | Name | Total Patents |
|---|---|---|
| #1 | Heinz Pein | 3 |
| Publication | Filing date | Title |
|---|---|---|
| GB356492A | Advertisement writer | |
| US1789637A | Receiving apparatus for electric telegraphs | |
| US1722940A | Method and apparatus for transmitting written characters | |
| US1715781A | Method and means for the electric transmission of written characters | |
| GB264553A | Electric telegraphs |