| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 6 | |
| #2 | Canada | 5 |
| # | Industry | |
|---|---|---|
| #1 | Mechanical elements | |
| #2 | Medical technology | |
| #3 | Machines |
| # | Technology | |
|---|---|---|
| #1 | Frames | |
| #2 | Syringes | |
| #3 | Nails | |
| #4 | Diagnosis and surgery | |
| #5 | Unspecified technologies | |
| #6 | Gearing | |
| #7 | Operating tables |
| # | Name | Total Patents |
|---|---|---|
| #1 | Karapita Alexander D | 11 |
| #2 | Orr James D | 1 |
| Publication | Filing date | Title |
|---|---|---|
| CA1329187C | Counterbalancing system for rotatable suspension arms | |
| CA1291976C | Counter-balanced automatically-adjusting moveable-arm type suspension system | |
| US4645156A | Suspension system | |
| US4673154A | Suspension device | |
| US4592527A | Overhead trolley | |
| US4445660A | Adjustable suspension support | |
| CA1195670A | Suspension system | |
| CA1145736A | Support unit | |
| US4374581A | Support unit | |
| CA999841A | Telescopic support |