Genus
Sinningia
4 US plant patents have been granted in this genus. 4 are already in the public domain — anyone may propagate and sell them.
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.
- Glo RedPP11056Sinningia plant named `Glo Red`PUBLIC DOMAINSeptember 19, 2017
- Glo PinkPP11069Sinningia plant named `Glo Pink`PUBLIC DOMAINSeptember 19, 2017
- Glo BluePP11072Sinningia plant named `Glo Blue`PUBLIC DOMAINSeptember 19, 2017
- Glo WhitePP11084Sinningia plant named `Glo White`PUBLIC DOMAINSeptember 19, 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.