| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 5 | |
| #2 | United States | 3 | |
| #3 | United Kingdom | 2 | |
| #4 | WIPO (World Intellectual Property Organization) | 1 |
| # | Industry | |
|---|---|---|
| #1 | Medical technology | |
| #2 | Machines |
| # | Technology | |
|---|---|---|
| #1 | Syringes | |
| #2 | Unspecified technologies | |
| #3 | Diagnosis and surgery |
| # | Name | Total Patents |
|---|---|---|
| #1 | Bertram Volker | 11 |
| Publication | Filing date | Title |
|---|---|---|
| DE4412832A1 | Autoclavable cuff | |
| DE4100837A1 | ADAPTER WITH TRACHEAL TUBE | |
| DE4037084A1 | OROPHARYNGEAL TUBE | |
| DE3310661A1 | Holder for endotracheal tubes | |
| DE3218368A1 | Holder for endotracheal tubes with a biting block |