Genus
Quercus
56 US plant patents have been granted in this genus. 22 are already in the public domain — anyone may propagate and sell them. The next of the 34 still protected comes off patent on December 13, 2026.
Still under patent — 34 cultivars
Soonest to come off patent first. You may not propagate these for sale until the date shown.
- QSSTHPP19854Oak tree named ‘QSSTH’UNDER PATENTDecember 13, 2026
- QNSTGPP19858Oak tree named ‘QNSTG’UNDER PATENTDecember 13, 2026
- QPSTJPP19922Willow oak tree named ‘QPSTJ’UNDER PATENTDecember 13, 2026
- FBQV22PP19758Live Oak tree named ‘FBQV22’UNDER PATENTMarch 12, 2027
- FBQV1PP19759Live oak tree named ‘FBQV1’UNDER PATENTMarch 12, 2027
- QNMTFPP20550Nuttall Oak Tree Named ‘QNMTF’UNDER PATENTNovember 21, 2027
- AdelinePP20615Oak tree named ‘Adeline’UNDER PATENTDecember 28, 2027
- TaylorPP21359Hybrid oak tree named ‘Taylor’UNDER PATENTDecember 2, 2028
- PWJR08PP20900Pin oak tree named ‘PWJR08’UNDER PATENTDecember 4, 2028
- TaborPP21382Oak tree named ‘Tabor’UNDER PATENTDecember 29, 2028
- JFS-KW3PP22815Bur oak tree named ‘JFS-KW3’UNDER PATENTAugust 8, 2030
- JFS-KW12PP23632Swamp white oak tree named ‘JFS-KW12’UNDER PATENTDecember 15, 2031
- BetterredPP24813Oak tree named ‘Betterred’UNDER PATENTJuly 7, 2032
- GreenenvyPP24837Oak tree named ‘Greenenvy’UNDER PATENTJuly 16, 2032
- JFS-KW2QXPP24442Hybrid oak tree named ‘JFS-KW2QX’UNDER PATENTNovember 23, 2032
- QHMTFPP27191Laurel oak tree named ‘QHMTF’UNDER PATENTSeptember 19, 2034
- Joan LionettiPP27646Texas live oak tree named ‘Joan Lionetti’UNDER PATENTDecember 3, 2034
- Green NovaPP28342Oak tree named ‘Green Nova’UNDER PATENTAugust 27, 2035
- OchlockneePP28344Oak tree named ‘Ochlocknee’UNDER PATENTSeptember 18, 2035
- DahlonegaPP28343Oak tree named ‘Dahlonega’UNDER PATENTOctober 15, 2035
- HowlerPP28345Oak tree named ‘Howler’UNDER PATENTOctober 15, 2035
- HopeulikitPP28402Oak tree named ‘Hopeulikit’UNDER PATENTOctober 15, 2035
- CORLEY'S FIRECRACKERPP28585Quercus plant named ‘CORLEY'S FIRECRACKER’UNDER PATENTJanuary 27, 2036
- Woodside SplendorPP28668Quercus tree named ‘Woodside Splendor’UNDER PATENTApril 30, 2036
- TGO-GALPP32879Willow oak tree named ‘TGO-GAL’UNDER PATENTDecember 23, 2039
- MillikenPP33590Oak tree named ‘Milliken’UNDER PATENTNovember 19, 2040
- QRMTFPP34011Quercus tree named ‘QRMTF’UNDER PATENTApril 20, 2041
- QNMTF2PP34323Quercus tree named ‘QNMTF2’UNDER PATENTApril 20, 2041
- QVCCNPP34495Quercus tree named ‘QVCCN’UNDER PATENTJanuary 24, 2042
- QPMTF2PP35160Quercus ‘QPMTF2’UNDER PATENTSeptember 6, 2042
- QVMTFSPP35315Quercus tree named ‘QVMTFS’UNDER PATENTSeptember 6, 2042
- QAMTFPP35389Quercus alba tree named ‘QAMTF’UNDER PATENTSeptember 6, 2042
- QPMTF3PP37016Quercus tree named ‘QPMTF3’UNDER PATENTMarch 19, 2045
- QVMTF2PP37272Quercus virginiana tree named ‘QVMTF2’UNDER PATENTMarch 19, 2045
Already in the public domain — 22 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.
- QXMTFPP18495Oak tree named ‘QXMTF’PUBLIC DOMAINMay 31, 2026
- K-1PP17249Quercus virginiana tree named ‘K-1’PUBLIC DOMAINJune 23, 2025
- NadlerPP17604Oak tree named ‘Nadler’PUBLIC DOMAINFebruary 4, 2025
- AFTO-1PP16862White oak tree named ‘AFTO-1’PUBLIC DOMAINDecember 12, 2024
- QNSTCPP16401Oak tree named ‘QNSTC’PUBLIC DOMAINAugust 10, 2024
- QNSTDPP16254Oak tree named ‘QNSTD’PUBLIC DOMAINAugust 6, 2024
- QPSTBPP18321Willow oak tree named ‘QPSTB’PUBLIC DOMAINJune 3, 2024
- RT3PP16444Willow oak tree named ‘RT3’PUBLIC DOMAINFebruary 6, 2024
- QPMTFPP15217Willow oak tree named ‘QPMTF’PUBLIC DOMAINNovember 15, 2022
- QSFTCPP14424Oak tree named ‘QSFTC’PUBLIC DOMAINApril 17, 2022
- QLFTBPP13470Overcup oak tree named ‘QLFTB’PUBLIC DOMAINJune 7, 2021
- QNFTAPP13524Oak tree named ‘QNFTA’PUBLIC DOMAINApril 27, 2021
- QPSTAPP13677Willow oak tree named ‘QPSTA’PUBLIC DOMAINApril 13, 2021
- Palmetto Pin OakPP12145Oak tree named ‘Palmetto Pin Oak’PUBLIC DOMAINOctober 27, 2019
- SDLNPP12015Live oak tree named ‘SDLN’PUBLIC DOMAINNovember 20, 2018
- ClemonsPP11431Oak tree named `Clemons`PUBLIC DOMAINApril 28, 2018
- LongPP12673Oak tree named ‘Long’PUBLIC DOMAINJanuary 14, 2018
- QVTIAPP11219Live oak tree named `QVTIA`PUBLIC DOMAINOctober 27, 2017
- CrimschmidtPP9103Oak tree `Crimschmidt`PUBLIC DOMAINMay 2, 2014
- PringreenPP9093Quercus palustris `Pringreen`PUBLIC DOMAINJanuary 3, 2014
- WandellPP6746English oak named `Wandell`PUBLIC DOMAINNovember 19, 2007
- Oak treePP4149PUBLIC DOMAINNovember 15, 1994
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.