PatentBrief

Inventor

Lee De Forest

Patents indexed

1

Year range

1908

Associated with

Years active

1908

Total patents

1

Most recent

1908

Domains

telecommunicationssemiconductors

Activity by decade

1900s
1

Patents

1

Career timeline

1 patents, in 1908

Dot size = forward citations

19081909

Hover or tap any dot to see the patent. Larger dots indicate more forward citations — a proxy for downstream influence.

US 879532·1908·FOREST RADIO TELEPHONE CO DE

Lee De Forest's Early Radio Telegraphy System

A 1908 patent by radio pioneer Lee De Forest describing methods for transmitting and receiving wireless telegraphy signals using early vacuum tube technology.

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