| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 8 | |
| #2 | Canada | 2 | |
| #3 | France | 2 | |
| #4 | United Kingdom | 2 |
| # | Industry | |
|---|---|---|
| #1 | Transport | |
| #2 | Machines | |
| #3 | Civil engineering |
| # | Technology | |
|---|---|---|
| #1 | Vehicle windows, roofs and doors | |
| #2 | Unspecified technologies | |
| #3 | Unspecified technologies | |
| #4 | Bolts for doors or windows |
| # | Name | Total Patents |
|---|---|---|
| #1 | August Keller | 7 |
| #2 | Keller August | 2 |
| #3 | Porter Gilbert Earle | 1 |
| #4 | Mcleod Stewart B | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US2388755A | Hydraulic lift mechanism | |
| US2372583A | Collapsible top for motor vehicles | |
| US2267471A | Collapsible top for motor vehicles | |
| GB530288A | Folding hoods for motor-vehicles | |
| GB528831A | Improvements in folding hoods for vehicles | |
| US2213222A | Collapsible top | |
| US2305715A | Vehicle body | |
| US2255289A | Vehicle top | |
| US2264382A | Self-locking check arm | |
| CA399367A | Vehicle top | |
| CA399368A | Vehicle body |