Genus
Viola
43 US plant patents have been granted in this genus. 8 are already in the public domain — anyone may propagate and sell them. The next of the 35 still protected comes off patent on October 11, 2027.
Still under patent — 35 cultivars
Soonest to come off patent first. You may not propagate these for sale until the date shown.
- SunviodaPP19237Viola plant named ‘Sunvioda’UNDER PATENTOctober 11, 2027
- SunviopapuPP20259Viola plant named ‘Sunviopapu’UNDER PATENTJanuary 25, 2028
- SunviopapuhoPP20285Viola plant named ‘Sunviopapuho’UNDER PATENTJanuary 25, 2028
- SunviolabuPP20264Viola plant named ‘Sunviolabu’UNDER PATENTJanuary 27, 2028
- SMEV1PP19882Viola plant named ‘SMEV1’UNDER PATENTFebruary 11, 2028
- HeartthrobPP19996Viola plant named ‘Heartthrob’UNDER PATENTJune 3, 2028
- SunviolemoPP20132Viola plant named ‘Sunviolemo’UNDER PATENTJune 9, 2028
- SunviotamaPP20135Viola plant named ‘Sunviotama’UNDER PATENTJune 9, 2028
- SunviofujiPP20438Viola plant named ‘Sunviofuji’UNDER PATENTAugust 4, 2028
- FlovelpurbiPP20722Viola plant named ‘Flovelpurbi’UNDER PATENTOctober 28, 2028
- FlovellemplPP20737Viola plant named ‘Flovellempl’UNDER PATENTOctober 28, 2028
- FlovelblPP20738Viola plant named ‘Flovelbl’UNDER PATENTOctober 28, 2028
- FlovellavyelPP20740Viola plant named ‘Flovellavyel’UNDER PATENTOctober 28, 2028
- FlovelwhPP20762Viola plant named ‘Flovelwh’UNDER PATENTOctober 28, 2028
- BalvijacPP21084Viola plant named ‘Balvijac’UNDER PATENTJanuary 8, 2029
- SunviopokiPP21332Viola plant named ‘Sunviopoki’UNDER PATENTJune 15, 2029
- SunviocobaPP21647Viola plant named ‘Sunviocoba’UNDER PATENTOctober 2, 2029
- SunviopinhoPP22120Viola plant named ‘Sunviopinho’UNDER PATENTApril 10, 2030
- SMEV2PP23033Viola plant named ‘SMEV2’UNDER PATENTFebruary 15, 2031
- KerviomeriPP22984Viola plant named ‘Kerviomeri’UNDER PATENTMarch 14, 2031
- KervioprisePP22994Viola plant named ‘Kervioprise’UNDER PATENTMarch 14, 2031
- KerviodeepPP22995Viola plant named ‘Kerviodeep’UNDER PATENTMarch 14, 2031
- KERVIOCHEEKYPP22996Viola plant named ‘KERVIOCHEEKY’UNDER PATENTMarch 14, 2031
- BlackoutPP23369Viola plant named ‘Blackout’UNDER PATENTSeptember 1, 2031
- Halo VioletPP24428Viola plant named ‘Halo Violet’UNDER PATENTNovember 15, 2032
- Halo Sky BluePP24541Viola plant named ‘Halo Sky Blue’UNDER PATENTJanuary 12, 2033
- Halo LilacPP24542Viola plant named ‘Halo Lilac’UNDER PATENTJanuary 18, 2033
- SMEV4PP24591Viola plant named ‘SMEV4’UNDER PATENTMarch 22, 2033
- SMEV3PP24592Viola plant named ‘SMEV3’UNDER PATENTMarch 22, 2033
- Halo Lemon FrostPP26383Viola plant named ‘Halo Lemon Frost’UNDER PATENTSeptember 20, 2034
- SMEV5PP26855Viola plant named ‘SMEV5’UNDER PATENTDecember 10, 2034
- Sunny JimPP28422Viola plant named ‘Sunny Jim’UNDER PATENTJanuary 25, 2036
- BonnyPP28352Viola plant named ‘Bonny’UNDER PATENTJanuary 30, 2036
- SweetheartPP28353Viola plant named ‘Sweetheart’UNDER PATENTJanuary 30, 2036
- Halo Golden YellowPP30900Viola plant named ‘Halo Golden Yellow’UNDER PATENTSeptember 6, 2038
Already in the public domain — 8 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.
- Lord PrimrosePP18253Viola plant named ‘Lord Primrose’PUBLIC DOMAINJune 7, 2026
- SunviobuPP17676Viola plant named ‘Sunviobu’PUBLIC DOMAINOctober 26, 2025
- SunviolahoPP17677Viola plant named ‘Sunviolaho’PUBLIC DOMAINOctober 26, 2025
- SunviolalemoPP16745Viola plant named ‘Sunviolalemo’PUBLIC DOMAINJanuary 23, 2025
- SunviolamariPP16713Viola plant named ‘Sunviolamari’PUBLIC DOMAINJanuary 9, 2025
- SunviobuhoPP16557Viola plant named ‘Sunviobuho’PUBLIC DOMAINNovember 7, 2024
- Viola cornuta plant named SunviohoPP16377PUBLIC DOMAINDecember 4, 2023
- Black MagicPP6595Bedding viola named `Black Magic`PUBLIC DOMAINAugust 6, 2007
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.