| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Australia | 3 | |
| #2 | Germany | 3 | |
| #3 | Italy | 3 | |
| #4 | United Kingdom | 2 | |
| #5 | Israel | 2 | |
| #6 | Sweden | 2 | |
| #7 | United States | 2 | |
| #8 | Canada | 1 | |
| #9 | Netherlands | 1 |
| # | Industry | |
|---|---|---|
| #1 | Machines | |
| #2 | Control | |
| #3 | Mechanical elements | |
| #4 | Civil engineering | |
| #5 | Optics | |
| #6 | Environmental technology | |
| #7 | Engines, pumps and turbines |
| # | Name | Total Patents |
|---|---|---|
| #1 | Lange H | 9 |
| #2 | Lange Hermann | 1 |
| #3 | Lange Horst | 1 |
| Publication | Filing date | Title |
|---|---|---|
| AU7086887A | Energy conversion device | |
| IL38209D0 | Apparatus for attaching a hot and cold water plumbing fixture to building water pipes | |
| US3758028A | Mixing valve and thermostat for use with same | |
| CA923796A | Multi-job router guide kit |