Plant
Liriodendron
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 January 8, 2028.
Still under patent — 2 cultivars
Soonest to come off patent first. You may not propagate these for sale until the date shown.
- Little VolunteerPP19581Liriodendron plant named ‘Little Volunteer’UNDER PATENTJanuary 8, 2028
- LTMTFPP35307Liriodendron tree named ‘LTMTF’UNDER PATENTSeptember 6, 2042
Botanically this is Liriodendron. 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.