| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 15 | |
| #2 | France | 5 | |
| #3 | United Kingdom | 1 |
| # | Industry | |
|---|---|---|
| #1 | Medical technology | |
| #2 | Furniture and games | |
| #3 | Civil engineering |
| # | Technology | |
|---|---|---|
| #1 | Operating tables | |
| #2 | Chairs and beds | |
| #3 | Dentistry | |
| #4 | Doors and windows |
| # | Name | Total Patents |
|---|---|---|
| #1 | Ohlrogge Wilhelm | 8 |
| #2 | Otzen Manfred | 3 |
| #3 | Dr Phil Nat Habil Johannes Pae | 2 |
| #4 | Fleer Otto | 2 |
| #5 | Schuetze Joachim | 1 |
| #6 | Opfermann Rudolf | 1 |
| #7 | Behne Ernst-August | 1 |
| Publication | Filing date | Title |
|---|---|---|
| GB1137590A | Dental chair with arm-rest | |
| DE1188241B | Dental patient chair | |
| DE325890C | Pedal drill for dental and other purposes |