The GEM technology and applications are protected by national and international patents (seebelow). While use of the technology is encouraged and free in the research and development fields, commercial exploitation will have to be licensed by CERN

For more information, please contact CERN's Knowledge Transfer office:

http://kt.cern/technology-transfer/external-partners/gas-electron-multiplier/

DOWNLOAD PATENTS:

GEM US PATENT

GEM WHO PATENT