| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 25 | |
| #2 | Canada | 1 |
| # | Industry | |
|---|---|---|
| #1 | Medical technology | |
| #2 | Consumer goods | |
| #3 | Machine tools | |
| #4 | Machines |
| # | Technology | |
|---|---|---|
| #1 | Implantable devices | |
| #2 | Unspecified technologies | |
| #3 | Soldering, welding and flame cutting | |
| #4 | Hats | |
| #5 | Live-saving devices |
| # | Name | Total Patents |
|---|---|---|
| #1 | Bowers Frederick M | 26 |
| Publication | Filing date | Title |
|---|---|---|
| US2362610A | Helmet connection for skullguards | |
| US2320214A | Adjustable glass holder for welders' helmets | |
| US2260849A | Filter glass holder | |
| US2205742A | Adjustable headband | |
| US2152865A | Welding shield or helmet | |
| US2186817A | Filter glass holder | |
| US2205741A | Adjustable headband | |
| US2111747A | Headgear friction joint device for welding shields | |
| US2167969A | Combination welding helmet and safety hat | |
| US2111746A | Adjustable head band | |
| US2105071A | Filter glass holder | |
| US2067230A | Electrode holder | |
| US2055117A | Filter glass holder | |
| US1944399A | Welder's mask | |
| US1905210A | Welder's mask | |
| US1874872A | Welder's mask | |
| US1838611A | Sand blast helmet | |
| US1919927A | Welder's shield | |
| US1774587A | Visor attachment for industrial eye shields | |
| US1872877A | Sand-blaster's helmet |