| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 6 | |
| #2 | United States | 4 | |
| #3 | Spain | 3 | |
| #4 | France | 2 | |
| #5 | Finland | 1 |
| # | Industry | |
|---|---|---|
| #1 | Mechanical elements | |
| #2 | Measurement | |
| #3 | Packaging and shipping | |
| #4 | Machines | |
| #5 | Thermal processes | |
| #6 | Transport | |
| #7 | Agriculture | |
| #8 | Civil engineering |
| # | Technology | |
|---|---|---|
| #1 | Unspecified technologies | |
| #2 | Pipe-line systems | |
| #3 | Domestic stoves for solid fuels | |
| #4 | Containers for goods storage | |
| #5 | Animal care | |
| #6 | Testing of structures | |
| #7 | Gas holders | |
| #8 | Marine propulsion | |
| #9 | Pipes | |
| #10 | Dredging |
| # | Name | Total Patents |
|---|---|---|
| #1 | Siegmund Werner | 2 |
| #2 | Carl Hansen | 2 |
| #3 | Hansen William A | 2 |
| #4 | Paul Leth | 2 |
| #5 | Hansen | 1 |
| #6 | Hinrichs John A | 1 |
| #7 | Hansen Christian L | 1 |
| #8 | Wahl Mathias | 1 |
| #9 | Riemann Hans Helmut | 1 |
| #10 | Peer Edward H | 1 |
| Publication | Filing date | Title |
|---|---|---|
| DE2819552A1 | HEATING SYSTEM | |
| DE2819551A1 | HEATING SYSTEM | |
| ES383144A3 | Apparatus for the control of the emission of exhaust gases in the vehicles automóviles. (Machine-translation by Google Translate, not legally binding) | |
| DE1258678B | Leak indicator for double-walled liquid containers with negative pressure in the jacket space | |
| US1871517A | Warp let-off attachment | |
| US1683668A | Vane for fishery | |
| US1692830A | Combined seine net and bottom dragnet with trapping wings | |
| US1479806A | Excavating apparatus |