World Wide Web
Tim Berners-Lee, CERN, Switzerland, no patent, 1989. Given away to the world.
Overview
Tim Berners-Lee proposed a hypertext information system at CERN in 1989 and by the end of 1990 had built the first web server, browser and pages, defining HTML, HTTP and URLs. He chose not to patent it, believing the web could only spread if anyone could build on it freely. In April 1993 CERN formally placed the web software in the public domain. That decision let the web overtake rival systems such as Gopher, whose owner had announced licensing fees, and the web became the main way people use the internet.
Related Patents
Transistor
Bell Labs' December 1947 point-contact demonstration led to Shockley's junction transistor theory and patent 2,524,035 in 1950. AT...
Integrated Circuit
Kilby built germanium circuits at TI in 1958; Noyce's Fairchild planar process made silicon manufacturable and interconnected. The...
ENIAC
Penn's ENIAC computed artillery tables with 18,000 vacuum tubes from 1945. Eckert and Mauchly left to build UNIVAC, winning their ...
Dynamic RAM
Dennard's one-transistor, one-capacitor cell, patented 1968, shrank memory a thousandfold per dollar per decade. DRAM scaling rode...