Skip to content
The Patent Garden

Plant

Curcuma

30 US plant patents name this plant. 4 have expired, so those cultivars are free to propagate and sell. The next of the 26 still protected comes off patent on April 12, 2027.

Still under patent — 26 cultivars

Soonest to come off patent first. You may not propagate these for sale until the date shown.

Already in the public domain — 4 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.

Botanically this is Curcuma. 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.