Plant
Carpinus
5 US plant patents name this plant. 1 has expired, so that cultivar is free to propagate and sell. The next of the 4 still protected comes off patent on January 10, 2037.
Still under patent — 4 cultivars
Soonest to come off patent first. You may not propagate these for sale until the date shown.
- JN Select APP29969Carpinus plant named ‘JN Select A’UNDER PATENTJanuary 10, 2037
- JN Select AAPP32758Carpinus plant named ‘JN Select AA’UNDER PATENTAugust 19, 2039
- CCMTF1PP32815Carpinus tree named ‘CCMTF1’UNDER PATENTDecember 13, 2039
- CCMTF2PP32826Carpinus tree named ‘CCMTF2’UNDER PATENTDecember 13, 2039
Already in the public domain — 1 cultivar
Most recently freed first. Anyone may propagate and sell this plant — though the name it is sold under may still be a live trademark.
- Kuro BijinPP14838Carpinus coreana plant named ‘Kuro Bijin’PUBLIC DOMAINMarch 26, 2022
Botanically this is Carpinus. 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.