| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 70 |
| # | Industry | |
|---|---|---|
| #1 | Measurement | |
| #2 | Control | |
| #3 | Mechanical elements | |
| #4 | Consumer goods | |
| #5 | Machines | |
| #6 | Weapons |
| # | Technology | |
|---|---|---|
| #1 | Radio navigation | |
| #2 | Measuring distances | |
| #3 | Geophysics | |
| #4 | Traffic control systems | |
| #5 | Sound-producing devices | |
| #6 | Belts or cables for driving | |
| #7 | Measuring speed and acceleration | |
| #8 | Generating mechanical vibrations | |
| #9 | Armour | |
| #10 | Measuring volume |
| # | Name | Total Patents |
|---|---|---|
| #1 | Fahrentholz Dr Phil Nat Siegfr | 62 |
| #2 | Schmidt Erwin | 12 |
| #3 | Koester Alfred | 2 |
| #4 | Jun Siegfried Fahrentholz | 1 |
| #5 | Dr Rer Nat S R J Fahrentholz | 1 |