| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 6 | |
| #2 | Germany | 5 |
| # | Industry | |
|---|---|---|
| #1 | Chemical engineering | |
| #2 | Machines | |
| #3 | Packaging and shipping | |
| #4 | Mechanical elements |
| # | Technology | |
|---|---|---|
| #1 | Chemical or physical laboratory devices | |
| #2 | Containers for goods storage | |
| #3 | Unspecified technologies | |
| #4 | Pipes | |
| #5 | Unspecified technologies | |
| #6 | Manufacturing processes |
| # | Name | Total Patents |
|---|---|---|
| #1 | Wilhelm Juffa | 6 |
| #2 | Juffa Wilhelm | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US2202055A | Reducing piece for glass instruments for laboratory technics | |
| US2186457A | Perforated joint valve for glass instruments | |
| US2133705A | Glass apparatus for chemical laboratories | |
| US2104325A | Mixing pipette | |
| US2052713A | Reducing piece for standard ground surfaces | |
| US1895249A | Container for the packing of articles |