Post-it Note Art

Post-it notes were invented by 3M's Art Fry, using an adhesive developed by a colleague, Spencer Silver. Until the 1990s, when the patent expired, they were produced only in the 3M plant in Cynthiana, Kentucky. Although other companies now produce sticky or repositionable notes, most of the world's Post-it Brand notes are still made in Cynthiana.
The term "Post-it" and the canary yellow color are trademarks of 3M. Accepted generic terms for competitors include "sticky notes", "repositionable notes", and "repositional notes". To take advantage of the success of the brand, 3M manufactures other products related to the Post-it concept.