| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Austria | 4 | |
| #2 | Switzerland | 2 | |
| #3 | United States | 2 | |
| #4 | Canada | 1 | |
| #5 | Denmark | 1 | |
| #6 | United Kingdom | 1 |
| # | Industry | |
|---|---|---|
| #1 | Engines, pumps and turbines | |
| #2 | Mechanical elements |
| # | Technology | |
|---|---|---|
| #1 | Venting or aerating devices | |
| #2 | Cooling of machines |
| # | Name | Total Patents |
|---|---|---|
| #1 | Bachrich Ludwig | 11 |
| #2 | Bachrich Heinrich | 2 |
| Publication | Filing date | Title |
|---|---|---|
| CA118101A | Method of controlling valves, etc. | |
| US1043500A | Control of valves, detents, switches, and the like. | |
| GB190806434A | Improvements in Internal Combustion Engines for Motor Road Vehicles. | |
| US642948A | Apparatus for sterilizing liquids. |