| # | Country | Total Patents | |
|---|---|---|---|
| #1 | EPO (European Patent Office) | 3 | |
| #2 | Finland | 3 | |
| #3 | Germany | 2 | |
| #4 | France | 2 | |
| #5 | United Kingdom | 2 | |
| #6 | Sweden | 2 | |
| #7 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering | |
| #2 | Transport | |
| #3 | Environmental technology |
| # | Name | Total Patents |
|---|---|---|
| #1 | Oldfelt Sven | 6 |
| #2 | Stahl Gary L | 4 |
| #3 | Terve Rolf | 3 |
| #4 | Forsbaeck Torbjoern | 3 |
| #5 | Dubler Paul L | 3 |
| #6 | Wilhelm Raymond L | 2 |
| #7 | Lindroos Gunnar | 2 |
| #8 | Ask Arne | 2 |
| #9 | Oestman Anders G | 2 |
| #10 | Wallgren Harald Anton Ake | 2 |
| Publication | Filing date | Title |
|---|---|---|
| US5421040A | Vacuum toilet system | |
| FI931008A0 | Toilet filling valve | |
| FR2668187A1 | VACUUM WASTE SYSTEM USING TREATED FLUSHING LIQUID AND METHOD FOR OPERATING SUCH A SYSTEM. | |
| GB9121053D0 | Vacuum toilet system with treated rinse liquid | |
| FI914238A0 | Tvaettstaell och dess tillslutningsorgan |