Plant
Lychnis
6 US plant patents name this plant. 2 have expired, so those cultivars are free to propagate and sell. The next of the 4 still protected comes off patent on May 7, 2033.
Still under patent — 4 cultivars
Soonest to come off patent first. You may not propagate these for sale until the date shown.
- Pmoore05PP25460Lychnis plant named ‘Pmoore05’UNDER PATENTMay 7, 2033
- LipstickPP26243Lychnis plant named ‘Lipstick’UNDER PATENTMay 15, 2034
- LychjenpetPP27495Lychnis plant named ‘Lychjenpet’UNDER PATENTJune 23, 2035
- IFLYPHPP31373Lychnis plant named ‘IFLYPH’UNDER PATENTFebruary 21, 2039
Already in the public domain — 2 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.
- Rolly's FavoritePP17392Lychnis plant named ‘Rolly's Favorite’PUBLIC DOMAINJuly 19, 2025
- LychjenPP14139Lychnis plant named ‘Lychjen’PUBLIC DOMAINMay 10, 2022
Botanically this is Lychnis. 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.