| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 11 | |
| #2 | Germany | 1 | |
| #3 | United Kingdom | 1 |
| # | Industry | |
|---|---|---|
| #1 | Machines | |
| #2 | Mechanical elements | |
| #3 | Transport | |
| #4 | Electrical machinery and energy | |
| #5 | Civil engineering |
| # | Technology | |
|---|---|---|
| #1 | Unspecified technologies | |
| #2 | Motor vehicles | |
| #3 | Clutches and brakes | |
| #4 | Springs | |
| #5 | Dredging | |
| #6 | Unspecified technologies | |
| #7 | Dynamo-electric machines | |
| #8 | Electric motor controls | |
| #9 | Vehicle transmission mounting | |
| #10 | Gearing |
| # | Name | Total Patents |
|---|---|---|
| #1 | Spannhake Ernst W | 3 |
| #2 | Roe Charles C | 3 |
| #3 | Smith Hoyt W | 2 |
| #4 | Isgren Elmer E | 1 |
| #5 | Gill Raymond E | 1 |
| #6 | Doversberger Richard A | 1 |
| #7 | Chandler James I | 1 |
| #8 | Hyler John H | 1 |
| #9 | Mcglade Wayne H | 1 |
| #10 | Kress Ralph H | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US3272274A | Vehicle | |
| US3224484A | Wheel construction | |
| US3242770A | Torque limiter for a motor grader | |
| US3083949A | Tension device | |
| US3161083A | Plural motor variable speed gear drive | |
| US2954671A | Power steering means | |
| US2961893A | Power transmission device | |
| US2961892A | Power transmission device | |
| US3024378A | Induction motor rotor | |
| US2817426A | Control system | |
| DE1159085B | Device for exciting an alternating current generator via a rectifier | |
| GB832683A | Improvements in or relating to a field current supply system for an alternator | |
| US2907399A | Vehicle steering mechanism |