| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United Kingdom | 15 | |
| #2 | United States | 7 | |
| #3 | Canada | 3 | |
| #4 | EPO (European Patent Office) | 3 | |
| #5 | Germany | 1 | |
| #6 | France | 1 | |
| #7 | Netherlands | 1 | |
| #8 | Sweden | 1 |
| # | Industry | |
|---|---|---|
| #1 | Medical technology | |
| #2 | Transport | |
| #3 | Machines | |
| #4 | Environmental technology | |
| #5 | Materials and metallurgy |
| # | Name | Total Patents |
|---|---|---|
| #1 | Singleton John Michael | 10 |
| #2 | Slasor James Francis | 4 |
| #3 | Singleton John M | 4 |
| #4 | Cragg Harold | 3 |
| #5 | Slasor James F | 2 |
| #6 | Cragg H | 1 |
| #7 | Sharpe John W | 1 |
| Publication | Filing date | Title |
|---|---|---|
| GB9409452D0 | Foldable electric wheelchair with centrally located power control unit | |
| GB8729065D0 | Foldable wheelchair | |
| GB8723416D0 | Improvements in foldable electric wheelchairs | |
| GB8707657D0 | Wheelchair | |
| US4805712A | Wheelchair | |
| GB8701818D0 | Lightweight foldable wheelchair | |
| GB8700686D0 | Kerb climbing device | |
| GB8616434D0 | Drive for electric wheelchairs | |
| GB8607946D0 | Wheelchair | |
| GB2113160A | Improvements in foldable wheelchairs | |
| GB1595702A | Wheelchairs | |
| GB1575354A | Chassis for wheelchairs | |
| US4140192A | Wheelchairs | |
| GB1511371A | Swinging arm seat | |
| NL180908B | Wheelchair with electrically powered wheels. | |
| US3901337A | Wheel chairs |