Plant
Iris
4 US plant patents name this plant. 4 have expired, so those cultivars are free to propagate and sell.
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.
- Mainestream SpringPP16178Iris plant named ‘Mainestream Spring’PUBLIC DOMAINFebruary 10, 2025
- Mainestream TempestPP16097Iris plant named ‘Mainestream Tempest’PUBLIC DOMAINDecember 16, 2024
- ParisPP7223Iris plant named ParisPUBLIC DOMAINApril 10, 2009
- TokyoPP7239Iris plant named TokyoPUBLIC DOMAINApril 10, 2009
Botanically this is Iris. 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.