Wireless — Energy current
InventTable — WIRELESS ERA — Energy current
| Invention | Description | Year | Inventor | Country |
| Blow dryer | heated air | 1920 | Racine Universal Motor Co. | USA |
| Blender | high speed food mixer | 1922 | Stephen Poplawski | USA |
| Electric shaver | men's shaver | 1923 | Jacob Schick | USA |
| Fluorescent lamp | 1926 | Edmund Germer | Germany | |
| Quartz clock | more accurate timekeeping | 1927 | Warren Marrison, J.W. Horton, Bell labs | USA |
| Electric pH meter | acidity measure | 1930 | Arnold Beckman | USA |
| Electric can opener | powered daisy wheel | 1931 | Preston West | USA |
| Electric bug zapper | electrocution of mosquitoes and flies | 1932 | William M. Frost, William Broderick Herms | USA |
| Electric steam iron | thermostat | 1934 | Max Skolnik | USA |
| Electric clothes dryer | heated tumbling | 1935 | J. Ross Moore | USA |
| Electric air conditioner | household | 1939 | Willis Carrier | USA |
| Electric toothbrush | 1954 | Phillipe Guy Woog | Switzerland | |
| Gel electrophoresis | separation | 1955 | Oliver Smithies | Canada |
| Modern alkaline battery | long lasting | 1957 | Lewis Urry | Canada |
| MOS transistor, MOSFET | world's most produced device | 1959 | Mohammed Atalla, Dawon Kahnb, Bell labs | USA |
| Integrated circuit | silicon monolithic | 1959 | Jack Kilby, Robert Noyce, Masatoshi Shima | USA |
| Invisible fence | pet containment | 1973 | Richard Peck | USA |
| Southern blot gel electrophoresis | DNA analysis | 1975 | Edwin Mellor Southern | USA |
| Wind farm | air current creates electric current | 1980 | Fausto Veranzio | USA |
| Electronic tolls, E-Z pass | for vehicles | 1986 | Mario Cardullo | USA |