Many of the Government labs do this. LLNL is notorious for exclusive licences. NASA as well. https://techportal.eere.energy.gov/lab/LLNL https://techportal.eere

Many of the Government labs do this. LLNL is notorious for exclusive licences. NASA as well. https://techportal.eere.energy.gov/lab/LLNL https://techportal.eere.energy.gov/lab/LLNL https://www.nasa.gov/ames-partnerships/opportunities/licensing https://www.nasa.gov/ames-partnerships/opportunities/licensi... Major partners will only sign the exclusive licences. Small players the lesser ones. The government prefers the major players