Plant
Tilia
2 US plant patents name this plant. 1 has expired, so that cultivar is free to propagate and sell. The next of the 1 still protected comes off patent on December 7, 2037.
Still under patent — 1 cultivar
Soonest to come off patent first. You may not propagate these for sale until the date shown.
- KROMMPP30737Tilia tree named ‘KROMM’UNDER PATENTDecember 7, 2037
Already in the public domain — 1 cultivar
Most recently freed first. Anyone may propagate and sell this plant — though the name it is sold under may still be a live trademark.
- Shibamichi GoldPP16433Tilia cordata plant named ‘Shibamichi Gold’PUBLIC DOMAINDecember 8, 2022
Botanically this is Tilia. 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.