Plant
Nierembergia
10 US plant patents name this plant. 3 have expired, so those cultivars are free to propagate and sell. The next of the 7 still protected comes off patent on December 2, 2026.
Still under patent — 7 cultivars
Soonest to come off patent first. You may not propagate these for sale until the date shown.
- SunniparihoPP19103Nierembergia plant named ‘Sunnipariho’UNDER PATENTDecember 2, 2026
- KLENC06134PP19840Nierembergia plant named ‘KLENC06134’UNDER PATENTDecember 17, 2027
- KLENC07344PP19880Nierembergia plant named ‘KLENC07344’UNDER PATENTMarch 24, 2028
- SunnicopadibuPP19689Nierembergia plant named ‘Sunnicopadibu’UNDER PATENTMarch 25, 2028
- SunnicopahoPP20871Nierembergia plant named ‘Sunnicopaho’UNDER PATENTSeptember 22, 2028
- IntasunnipabuPP20854Nierembergia plant named ‘Intasunnipabu’UNDER PATENTNovember 21, 2028
- USNRB1201PP21662Nierembergia plant named ‘USNRB1201’UNDER PATENTDecember 9, 2029
Already in the public domain — 3 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.
- SunniparibuPP16406Nierembergia plant named ‘Sunniparibu’PUBLIC DOMAINJuly 1, 2024
- SunniparisobuPP16394Nierembergia plant named ‘Sunniparisobu’PUBLIC DOMAINJune 23, 2024
- SunnicobuPP13934Nierembergia plant named ‘Sunnicobu’PUBLIC DOMAINJuly 1, 2019
Botanically this is Nierembergia. 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.