Genus
Heliopsis
20 US plant patents have been granted in this genus. 4 are already in the public domain — anyone may propagate and sell them. The next of the 16 still protected comes off patent on June 24, 2031.
Still under patent — 16 cultivars
Soonest to come off patent first. You may not propagate these for sale until the date shown.
- Summer StripePP23391Heliopsis plant named ‘Summer Stripe’UNDER PATENTJune 24, 2031
- Summer GreenPP23410Heliopsis plant named ‘Summer Green’UNDER PATENTJune 24, 2031
- SunstruckPP25524Heliopsis plant named ‘Sunstruck’UNDER PATENTDecember 10, 2033
- Double SunstruckPP26608Heliopsis plant named ‘Double Sunstruck’UNDER PATENTDecember 2, 2034
- InhelsodorPP29819Heliopsis plant named ‘Inhelsodor’UNDER PATENTMarch 31, 2037
- Funky SpinnerPP33715Heliopsis plant named ‘Funky Spinner’UNDER PATENTApril 23, 2041
- Fire TwisterPP33733Heliopsis plant named ‘Fire Twister’UNDER PATENTApril 23, 2041
- Bit of HoneyPP35063Heliopsis plant named ‘Bit of Honey’UNDER PATENTApril 28, 2042
- Luna RojaPP34988Heliopsis plant named ‘Luna Roja’UNDER PATENTAugust 23, 2042
- VAR006PP36364Heliopsis plant named ‘VAR006’UNDER PATENTMay 7, 2044
- VENSGCPP36938Heliopsis plant named ‘VENSGC’UNDER PATENTNovember 6, 2044
- Touch of BlushPP36739Heliopsis plant named ‘Touch of Blush’UNDER PATENTNovember 25, 2044
- Rays for DaysPP37266Heliopsis plant named ‘Rays for Days’UNDER PATENTApril 25, 2045
- Forged in FirePP37356Heliopsis plant named ‘Forged in Fire’UNDER PATENTSeptember 9, 2045
- SundialPP37407Heliopsis plant named ‘Sundial’UNDER PATENTOctober 14, 2045
- Sunny DispositionPP37343Heliopsis plant named ‘Sunny Disposition’UNDER PATENTNovember 13, 2045
Already in the public domain — 4 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.
- Tuscan SunPP18763Heliopsis plant named ‘Tuscan Sun’PUBLIC DOMAINAugust 18, 2026
- Prairie SunsetPP13779Heliopsis plant named ‘Prairie Sunset’PUBLIC DOMAINDecember 4, 2021
- Bressingham doubloonPP11270Heliopsis plant named `Bressingham doubloon`PUBLIC DOMAINAugust 11, 2017
- Loraine SunshinePP10690Heliopsis plant named `Loraine Sunshine`PUBLIC DOMAINJuly 25, 2017
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.