| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 9 | |
| #2 | Canada | 3 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering | |
| #2 | Machines |
| # | Technology | |
|---|---|---|
| #1 | Unspecified technologies | |
| #2 | Bolts for doors or windows | |
| #3 | Locks | |
| #4 | Finishing work on buildings | |
| #5 | Doors and windows | |
| #6 | Wing fittings | |
| #7 | Unspecified technologies |
| # | Name | Total Patents |
|---|---|---|
| #1 | Lee Frederick J | 12 |
| Publication | Filing date | Title |
|---|---|---|
| US1040360A | Door-holder. | |
| US1018716A | Door-latch. | |
| US1021611A | Door-catch. | |
| US1008346A | Door-brace. | |
| US996098A | Door-latch. | |
| US985185A | Door-holder. | |
| US987894A | Door-fastener. | |
| US985184A | Door-brace. | |
| US966027A | Door-fastener. | |
| CA11003A | Improvements on farm gates | |
| CA13913A | Improvements in wind-mills | |
| CA11464A | Improvements on milk cans |