| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Austria | 3 | |
| #2 | Canada | 3 | |
| #3 | Denmark | 3 | |
| #4 | Spain | 3 | |
| #5 | Switzerland | 1 |
| # | Industry | |
|---|---|---|
| #1 | Engines, pumps and turbines | |
| #2 | Materials and metallurgy |
| # | Technology | |
|---|---|---|
| #1 | Casting metal | |
| #2 | Cooling of machines | |
| #3 | Cylinders for combustion engines |
| # | Name | Total Patents |
|---|---|---|
| #1 | Ingram Joseph Amer | 9 |
| #2 | Joseph Amer Ingram | 1 |
| Publication | Filing date | Title |
|---|---|---|
| CA226763A | Motor cooling means | |
| CA216948A | Piston ring | |
| CA217916A | Centrifugal piston ring casting machine |