Plant
Standard carnation
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.
- RiminiPP8624Standard carnation named RiminiPUBLIC DOMAINNovember 4, 2012
- SolarPP8664Standard carnation named SolarPUBLIC DOMAINNovember 4, 2012
- CariciaPP8548Standard carnation name CariciaPUBLIC DOMAINJanuary 6, 2012
- StatasPP8571Standard carnation named StatasPUBLIC DOMAINOctober 24, 2011
- LontiltoPP7300Standard carnation named LontiltoPUBLIC DOMAINOctober 11, 2008
Botanically this is Dianthus. 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.