Plant
Corylus
19 US plant patents name this plant. 1 has expired, so that cultivar is free to propagate and sell. The next of the 18 still protected comes off patent on April 16, 2028.
Still under patent — 18 cultivars
Soonest to come off patent first. You may not propagate these for sale until the date shown.
- Red DragonPP20694Corylus plant named ‘Red Dragon’UNDER PATENTApril 16, 2028
- Anny's Purple DreamPP20413Corylus plant named ‘Anny's Purple Dream’UNDER PATENTSeptember 3, 2028
- Tonda PacificaPP22715Corylus plant named ‘Tonda Pacifica’UNDER PATENTDecember 16, 2030
- YorkPP24972Corylus plant named ‘York’UNDER PATENTFebruary 12, 2033
- DorrisPP25022Corylus plant named ‘Dorris’UNDER PATENTFebruary 12, 2033
- FelixPP24973Corylus plant named ‘Felix’UNDER PATENTFebruary 27, 2033
- WepsterPP27141Corylus plant named ‘Wepster’UNDER PATENTOctober 17, 2034
- McDonaldPP28200Corylus plant named ‘McDonald’UNDER PATENTJanuary 24, 2036
- Burgundy LacePP28216Corylus plant named ‘Burgundy Lace’UNDER PATENTFebruary 2, 2036
- PollyOPP32459Corylus plant named ‘PollyO’UNDER PATENTOctober 27, 2038
- RaritanPP32460Corylus plant named ‘Raritan’UNDER PATENTAugust 12, 2039
- HunterdonPP32461Corylus plant named ‘Hunterdon’UNDER PATENTAugust 12, 2039
- MonmouthPP32462Corylus plant named ‘Monmouth’UNDER PATENTAugust 12, 2039
- SomersetPP32494Corylus plant named ‘Somerset’UNDER PATENTAugust 12, 2039
- OSU 541.147PP33561Corylus plant named ‘OSU 541.147’UNDER PATENTAugust 28, 2040
- BWM01PP36422Corylus plant named ‘BWM01’UNDER PATENTDecember 20, 2042
- ThompsonPP37267Corylus plant named ‘Thompson’UNDER PATENTApril 5, 2044
- StapN7-6PP37182Corylus plant named ‘StapN7-6’UNDER PATENTDecember 18, 2044
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.
- Red MajesticPP16048Corylus plant named ‘Red Majestic’PUBLIC DOMAINSeptember 21, 2024
Botanically this is Corylus. 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.