| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 15 | |
| #2 | Canada | 3 |
| # | Industry | |
|---|---|---|
| #1 | Machine tools | |
| #2 | Machines | |
| #3 | Thermal processes | |
| #4 | Civil engineering | |
| #5 | Furniture and games | |
| #6 | Environmental technology |
| # | Name | Total Patents |
|---|---|---|
| #1 | Leslie Freeland H | 18 |
| Publication | Filing date | Title |
|---|---|---|
| US3327698A | Camp cook stove | |
| US2722981A | Adjustable building ventilator | |
| US2490220A | Roof ventilator | |
| US2359566A | Subpress | |
| US2382077A | Power press brake and die set | |
| US2382076A | Slant roof louver | |
| US2363879A | Slant roof louver | |
| US2382075A | Vertical wall louver | |
| US2293264A | Punch and die set holder | |
| US2314886A | Punch press | |
| US2300842A | Louver for slant roofs | |
| US2260183A | Punch press and punch and die set holder | |
| US2246051A | Stainless clad sink | |
| US1823616A | Stand | |
| US1579721A | Welding apparatus | |
| CA279917A | Welding apparatus | |
| CA415130A | Punch and die set holder | |
| CA494759A | Roof ventilators |