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| Invention | Inventor | Year | Patent No. |
| Carbon Microphone | Thomas Edison
David Edward Hughes | 1877
1878 | |
| Cell Phone | Martin Cooper | 1973 | US3,906,166 |
| Coaxial Cable | Lloyd Espenschied &
Herman Affel
(AT&T) | 1929 | US1,835,031 |
| Faraday Cage | Michael Faraday | 1836 | |
| Foil Electret Microphone | James Edward West
Gerhard M. Sessler | 1962 | US3,118,022 |
| Global Positioning System (GPS) | U.S. Department of Defense (DOD) | 1960s | |
| Loudspeaker | Ernst Siemens
Sir Oliver Joseph Lodge | 1877
1898 | GB4685
Ger2355
GB9712 |
| Microphone | Emile Berliner | 1877 | US224,573 |
| Morse Code | Samuel Morse | 1840 | US1,647 |
| Multiplex Telegraph | Granville T. Woods | 1887 | US373,383 |
| Multiplexing | | | |
| Pager | Al Gross | 1949 | |
| Personal Communication Services (PCS) | FCC | 1987 | |
| Plastic Sheath Cable | Walter Lincoln Hawkins | 1956 | |
| Remote Control | Nikola Tesla | 1898 | US613,809 |
| Satellite Communication (Telstar) | John R. Pierce (Bell Labs) | 1962 | |
| Telecommunications Cable Additives | Lincoln Hawkins | | |
| Telegraph | Samuel Morse | 1838 | US1,647 |
| Telephone | Alexander Graham Bell | 1876 | US174,465 |
| Telephone Switching System (Telephone Exchange) | Almon Strowger | 1889 | US447,918 |
| Walkie Talkie | Al Gross
Henryk Magnuski | 1938
1940 | |
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