Plant
Petunia×hybrida
2 US plant patents name this plant. 0 have expired, so those cultivars are free to propagate and sell. The next of the 2 still protected comes off patent on August 3, 2027.
Still under patent — 2 cultivars
Soonest to come off patent first. You may not propagate these for sale until the date shown.
A patent expiring frees the plant, and its cultivar name with it — cultivar names cannot be trademarked. Any brand name it is sold under is a separate thing and may still be owned.