| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Canada | 6 | |
| #2 | EPO (European Patent Office) | 4 | |
| #3 | WIPO (World Intellectual Property Organization) | 4 | |
| #4 | Brazil | 3 | |
| #5 | United States | 3 | |
| #6 | Norway | 1 |
| # | Industry | |
|---|---|---|
| #1 | Medical technology | |
| #2 | Optics |
| # | Technology | |
|---|---|---|
| #1 | Dentistry | |
| #2 | Optical systems |
| # | Name | Total Patents |
|---|---|---|
| #1 | Chang Shu Kun | 14 |
| #2 | Brassil John Michael | 14 |
| #3 | Heil Donald J | 7 |
| #4 | Quintana Reynaldo Jose | 7 |
| #5 | Fraquelli Roberto Giovanni | 7 |
| #6 | Berry Stephen D | 6 |
| #7 | Isaacs Dickon | 4 |
| #8 | Neilsson Gary | 4 |
| #9 | Lake John | 3 |
| #10 | Annett David Howard Meldrum | 3 |
| Publication | Filing date | Title |
|---|---|---|
| CA2307335A1 | Evacuation apparatus for use during dental abrasion procedures | |
| US5039304A | Quick connect/disconnect coupling for dental handpieces | |
| US5033960A | Dental handpiece connector assembly with replaceable air-cooled lamp and insertion/extraction tool therefor | |
| US5040980A | Dental handpiece with spring grip chuck and lever release mechanism | |
| CA2016023A1 | Dental handpiece with spring grip chuck and lever release mechanism |