| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 2 | |
| #2 | Belgium | 1 | |
| #3 | Canada | 1 | |
| #4 | German Democratic Republic | 1 | |
| #5 | Germany | 1 | |
| #6 | Finland | 1 | |
| #7 | Israel | 1 | |
| #8 | Italy | 1 | |
| #9 | Japan | 1 | |
| #10 | Netherlands | 1 | |
| #11 | Norway | 1 | |
| #12 | Portugal | 1 | |
| #13 | Sweden | 1 |
| # | Industry | |
|---|---|---|
| #1 | Medical technology | |
| #2 | Transport | |
| #3 | Machines |
| # | Technology | |
|---|---|---|
| #1 | Operating tables | |
| #2 | Installations for use in connection with aircrafts | |
| #3 | Unspecified technologies |
| # | Name | Total Patents |
|---|---|---|
| #1 | Day Frederick L | 4 |
| #2 | Day Frederick Lee | 3 |
| #3 | Furederitsuku Rii Dei | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US4229039A | Insert travel chair and method of transporting the handicapped | |
| CA1098020A | Travel insert chair and method of transporting the physically handicapped | |
| US4113307A | Travel insert chair and method of transporting the physically handicapped |