In one study by the US Small Business Administration, they looked at 2007-2009 (to understand economic activity during the height of the Great Recession) and no

In one study by the US Small Business Administration, they looked at 2007-2009 (to understand economic activity during the height of the Great Recession) and noted 42% of companies that file 15 or more patents over the two-year period had 500 employees or less (which is, to them, a small to medium business). https://www.sba.gov/sites/default/files/rs411tot.pdf https://www.sba.gov/sites/default/files/rs411tot.pdf