| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 3 | |
| #2 | Austria | 2 | |
| #3 | Germany | 2 | |
| #4 | Spain | 2 | |
| #5 | Switzerland | 1 | |
| #6 | Denmark | 1 | |
| #7 | France | 1 |
| # | Industry | |
|---|---|---|
| #1 | Mechanical elements | |
| #2 | Control | |
| #3 | Machines |
| # | Technology | |
|---|---|---|
| #1 | Venting or aerating devices | |
| #2 | Servomotors | |
| #3 | Steam traps | |
| #4 | Unspecified technologies | |
| #5 | Pistons and sealings | |
| #6 | Systems controlling non-electric variables |
| # | Name | Total Patents |
|---|---|---|
| #1 | Friedrich Schmitz | 1 |
| #2 | Gerhard Hesse | 1 |
| #3 | Schmitz Friedrich | 1 |
| #4 | Hans Liecke | 1 |
| #5 | Schmitz Schulte Hochdruck-Dich | 1 |
| #6 | Hans-Joachim Tuckmantel | 1 |
| Publication | Filing date | Title |
|---|---|---|
| ES310905A1 | Device to keep two contiguous enclosures separated through a membrane. (Machine-translation by Google Translate, not legally binding) | |
| US3160389A | Slide valve with a valve element covered by a diaphragm | |
| DE1103095B | Gate valve with a closure piece covered by a membrane | |
| DE1079409B | Gate valve with pyramidal closure piece and spindle seal through a membrane | |
| US2953346A | Gate valves | |
| ES207327A1 | A condensed water evacuator system (Machine-translation by Google Translate, not legally binding) |