| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United Kingdom | 3 | |
| #2 | Netherlands | 3 | |
| #3 | Germany | 2 | |
| #4 | Japan | 2 | |
| #5 | United States | 2 |
| # | Industry | |
|---|---|---|
| #1 | Measurement | |
| #2 | Medical technology |
| # | Technology | |
|---|---|---|
| #1 | Diagnosis and surgery | |
| #2 | Measuring volume | |
| #3 | Analysing materials |
| # | Name | Total Patents |
|---|---|---|
| #1 | Yohanesu Gerarudousu Teodorusu | 2 |
| #2 | Gerardus Theodorus | 1 |
| #3 | Luijpers Johannes Gerardus The | 1 |
| #4 | Rotgans Gerrit Jacob | 1 |
| #5 | Luijpers Johannes G T | 1 |
| #6 | Luijpers Johannes | 1 |
| Publication | Filing date | Title |
|---|---|---|
| NL7906868A | Gas analyzer. | |
| NL7906869A | Device for determining the volume value of an enclosed area. | |
| US4085741A | Apparatus for effecting plethysmography | |
| GB1492350A | Apparatus for measuring the volume variations of the thorax during respiration | |
| NL7501628A | Measuring cell for plethysmography - has seat in closed compartment with test cell and measuring cell with differential pressure gauge |