Genus
Amelanchier
6 US plant patents have been granted in this genus. 6 are already in the public domain — anyone may propagate and sell them.
Already in the public domain — 6 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.
- JFS-ArbPP15304Serviceberry tree named ‘JFS-Arb’PUBLIC DOMAINJuly 25, 2023
- 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
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.