Genus
Polianthes
2 US plant patents have been granted in this genus. 0 are already in the public domain — anyone may propagate and sell them. The next of the 2 still protected comes off patent on July 27, 2034.
On the name: Filed as Polianthes. Now generally treated as a synonym of Agave.
Still under patent — 2 cultivars
Soonest to come off patent first. You may not propagate these for sale until the date shown.
- Chia Nong Pink SapphirePP26460Polianthes plant named ‘Chia Nong Pink Sapphire’UNDER PATENTJuly 27, 2034
- CNGHPP26461Polianthes plant named ‘CNGH’UNDER PATENTJuly 28, 2034
A patent expiring frees the plant, and its cultivar name comes with it — cultivar names cannot be trademarked, so they are always free to use. What it does not free is any brand name the plant is marketed under. Those are trademarks and renew indefinitely.