| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 11 | |
| #2 | Canada | 1 | |
| #3 | Germany | 1 |
| # | Industry | |
|---|---|---|
| #1 | Thermal processes | |
| #2 | Consumer goods | |
| #3 | Mechanical elements |
| # | Technology | |
|---|---|---|
| #1 | Refrigerators | |
| #2 | Ice-boxes | |
| #3 | Pistons and sealings |
| # | Name | Total Patents |
|---|---|---|
| #1 | Ivar Lundgaard | 9 |
| #2 | Ajam Mustafa J | 2 |
| #3 | Lundgaard Ivar | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US2011964A | Refrigerating machine | |
| US1898804A | Refrigerating apparatus | |
| DE533946C | Chiller | |
| US1909875A | Refrigerator | |
| US1838148A | Pressure maintaining mechanism | |
| US1730580A | Refrigerating machine | |
| US1764110A | Air drier | |
| US1828286A | Stuffing box | |
| US1787584A | Household refrigerator | |
| US1812102A | Refrigerator | |
| US1688589A | Refrigerating machine | |
| US1717459A | Refrigerator | |
| CA303198A | Refrigerating machine |