| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 15 | |
| #2 | Austria | 5 | |
| #3 | Belgium | 2 | |
| #4 | United Kingdom | 2 | |
| #5 | Denmark | 1 |
| # | Industry | |
|---|---|---|
| #1 | Mechanical elements | |
| #2 | Machine tools | |
| #3 | Thermal processes |
| # | Technology | |
|---|---|---|
| #1 | Venting or aerating devices | |
| #2 | Punching metal | |
| #3 | Steam generation | |
| #4 | Pipes | |
| #5 | Tools for connecting or disengaging |
| # | Name | Total Patents |
|---|---|---|
| #1 | Linn Kurt | 5 |
| #2 | Baston Artur | 4 |
| #3 | Berschwinger Otto | 3 |
| #4 | Rau Otto | 1 |
| #5 | Rau Otto Dipl-Ing | 1 |
| #6 | Conzelmann Adolf | 1 |
| #7 | Schott Richard | 1 |
| #8 | Roth Walter Dr-Ing | 1 |
| Publication | Filing date | Title |
|---|---|---|
| GB891773A | Improvements in or relating to gate or sluice valves for pipe lines | |
| GB796823A | Improvements in or relating to sliding stop valves | |
| DE974406C | Sealing device for gate valve |