| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 7 | |
| #2 | Canada | 6 |
| # | Industry | |
|---|---|---|
| #1 | Machine tools | |
| #2 | Machines | |
| #3 | Measurement | |
| #4 | Environmental technology | |
| #5 | Thermal processes | |
| #6 | Civil engineering |
| # | Technology | |
|---|---|---|
| #1 | Presses | |
| #2 | Measuring distances | |
| #3 | Postal sorting | |
| #4 | Refrigerators | |
| #5 | Garbage disposal | |
| #6 | Roof coverings | |
| #7 | Unspecified technologies |
| # | Name | Total Patents |
|---|---|---|
| #1 | Gray William H | 13 |
| #2 | Hutchinson Alfred B | 1 |
| #3 | Mcfadden Orgen A | 1 |
| #4 | Turner Thomas G | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US2233049A | Eaves trough hanger | |
| US1842603A | Receptacle | |
| US1696436A | Pump for refrigerating apparatus | |
| US1102496A | Apple-sorter. | |
| CA111324A | Sliding door hanger | |
| US802162A | Plumb-level. | |
| US670175A | Baling-press. | |
| US629030A | Hay-press. | |
| CA23210A | Wood-planing machine | |
| CA25856A | Fire extinguisher | |
| CA23183A | Fastening for cutter heads,etc. | |
| CA23182A | Pulley and belt shipper for machinery | |
| CA23209A | Feed mechanism for wood planing machines |