Plant
Amelanchier
5 US plant patents name this plant. 5 have expired, so those cultivars are free to propagate and sell.
Already in the public domain — 5 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.
- MajesticPP7203Amelanchier laevis "Majestic"PUBLIC DOMAINDecember 30, 2008
- White PillarPP7072Amelanchier candensis "White Pillar"PUBLIC DOMAINJune 13, 2008
- Prince CharlesPP6039Amelanchier tree named "Prince Charles"PUBLIC DOMAINFebruary 26, 2005
- Prince WilliamPP6040Amelanchier shrub named "Prince William"PUBLIC DOMAINFebruary 26, 2005
- Princess DianaPP6041Amelanchier named "Princess Diana"PUBLIC DOMAINFebruary 26, 2005
Botanically this is Amelanchier. 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.