| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Canada | 3 | |
| #2 | Australia | 2 | |
| #3 | EPO (European Patent Office) | 2 | |
| #4 | Mexico | 2 | |
| #5 | Brazil | 1 | |
| #6 | Japan | 1 | |
| #7 | New Zealand | 1 | |
| #8 | United States | 1 | |
| #9 | South Africa | 1 |
| # | Industry | |
|---|---|---|
| #1 | Medical technology |
| # | Technology | |
|---|---|---|
| #1 | Syringes | |
| #2 | Veterinary instruments or methods |
| # | Name | Total Patents |
|---|---|---|
| #1 | Foley Martin P | 14 |
| #2 | Morton Robert | 9 |
| #3 | Jenkins David | 5 |
| Publication | Filing date | Title |
|---|---|---|
| US7004162B1 | Exhalation valve | |
| CA2446608A1 | Exhalation valve | |
| NZ250105A | Inhalator mask; one-way valve opens upon exhalation |