| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 12 | |
| #2 | Canada | 4 |
| # | Industry | |
|---|---|---|
| #1 | Electrical machinery and energy | |
| #2 | Thermal processes | |
| #3 | Machines | |
| #4 | Furniture and games | |
| #5 | Consumer goods |
| # | Technology | |
|---|---|---|
| #1 | Special electric heating or lighting | |
| #2 | Domestic stoves | |
| #3 | Unspecified technologies | |
| #4 | Kitchen equipment | |
| #5 | Cables and insulators | |
| #6 | Laundering textiles |
| # | Name | Total Patents |
|---|---|---|
| #1 | Backer Christian B | 16 |
| Publication | Filing date | Title |
|---|---|---|
| US2600605A | Multiple coil tubular heating element | |
| US2490611A | Tubular electric heating element and method of making the same | |
| US2472738A | Terminal block | |
| US2370767A | Electric boiling plate | |
| US2042203A | Electric hot plate and method of making same | |
| US1715692A | Heater unit | |
| US1680406A | Electric iron | |
| US1705702A | Concentric hot plate | |
| US1783554A | Electric heating device | |
| US1731882A | Electric percolator | |
| US1682467A | Electric iron | |
| CA409085A | Electric boiling plate | |
| CA452214A | Electric heating element | |
| CA474101A | Multiple coil tubular heating elements | |
| CA445044A | Tubular electric heating element |