| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 11 | |
| #2 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Foods and drinks | |
| #2 | Biotechnology | |
| #3 | Packaging and shipping | |
| #4 | Civil engineering | |
| #5 | Agriculture |
| # | Technology | |
|---|---|---|
| #1 | Dairy products | |
| #2 | Measuring microorganism processes | |
| #3 | Dairy products production | |
| #4 | Containers for goods storage | |
| #5 | Fodder | |
| #6 | Hydraulic engineering |
| # | Name | Total Patents |
|---|---|---|
| #1 | Friedel Georg | 7 |
| #2 | Georg Friedel | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US1858664A | Emergency closure or lock for weirs, sluice gates, and the like |