| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 35 | |
| #2 | France | 8 | |
| #3 | United Kingdom | 2 | |
| #4 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Transport | |
| #2 | Electrical machinery and energy | |
| #3 | Machines |
| # | Technology | |
|---|---|---|
| #1 | Motor vehicles | |
| #2 | Vehicle signalling and lighting | |
| #3 | Vehicle parts | |
| #4 | Electric switches | |
| #5 | Electrically-conductive connections | |
| #6 | Unspecified technologies |
| # | Name | Total Patents |
|---|---|---|
| #1 | Zeller Gregor | 10 |
| #2 | Mueller Reinhold | 9 |
| #3 | Naumann Horst | 7 |
| #4 | Fleckenstein Franz | 4 |
| #5 | Koser Erwin | 4 |
| #6 | Bonn Helmut | 3 |
| #7 | Barth Otto Mathias | 2 |
| #8 | Kunkel Josef | 2 |
| #9 | Bonn H | 1 |
| #10 | Fleckenstein Frz | 1 |
| Publication | Filing date | Title |
|---|---|---|
| DE2236351A1 | SIGNAL DEVICE FOR MOTOR VEHICLES | |
| DE2205301A1 | SLIDING CONTACT PIN | |
| US3712968A | Vehicle-steering wheel with horn-actuating baffle plate | |
| FR1497381A | Wooden circle steering wheel and method for its manufacture | |
| GB1153159A | Steering wheel with wood-surfaced rim and method of its manufacture |