Patent comparison

Compare Patents

Compare two patents side by side. Add ?a=us/7657849&b=us/8046721 to the URL to load specific patents.

US 2524035

The Invention of the Transistor

Bell Labs' 1950 patent for the point-contact transistor, the fundamental electronic component that makes all modern computing possible.

Statusexpired

Granted1950

Expires1968

Claims0

Forward citations130

Prior art10

AssigneeBell Telephone Laboratories Inc

InventorsWalter H Brattain, Bardeen John

Patent B

Add ?b=us/7657849 to compare

How to use

Bookmark a comparison URL to save it. Format: /compare?a=[country]/[number]&b=[country]/[number]. Example: /compare?a=us/7657849&b=us/8046721