Plant
Navel orange
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.
- Wiffen Summer NavelPP11246Navel orange tree named `Wiffen Summer Navel`PUBLIC DOMAINJune 23, 2017
- Rohde Summer NavelPP7651Navel orange tree named `Rohde Summer Navel`PUBLIC DOMAINMarch 2, 2010
- Powell Late NavelPP6733Navel orange plant named Powell Late NavelPUBLIC DOMAINNovember 18, 2007
- Variety of navel orange treePP6047PUBLIC DOMAINDecember 1, 2004
Botanically this is Citrus. 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.