Genus
Macadamia
3 US plant patents have been granted in this genus. 2 are already in the public domain — anyone may propagate and sell them. The next of the 1 still protected comes off patent on March 8, 2039.
Still under patent — 1 cultivar
Soonest to come off patent first. You may not propagate these for sale until the date shown.
- MCT1PP31743Macadamia tree named ‘MCT1’UNDER PATENTMarch 8, 2039
Already in the public domain — 2 cultivars
Most recently freed first. Anyone may propagate and sell these plants — though the name it is sold under may still be a live trademark.
- Hidden Valley A4PP7490Macadamia named "Hidden Valley A4"PUBLIC DOMAINApril 26, 2009
- Hidden Valley A16PP7521Macadamia named "Hidden Valley A16"PUBLIC DOMAINApril 26, 2009
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.