Genus
Streptocarpus
46 US plant patents have been granted in this genus. 37 are already in the public domain — anyone may propagate and sell them. The next of the 9 still protected comes off patent on December 20, 2027.
On the name: Filed as Streptocarpus. Now generally treated as a synonym under current taxonomy.
Still under patent — 9 cultivars
Soonest to come off patent first. You may not propagate these for sale until the date shown.
- KLEST07337PP19904Streptocarpus plant named ‘KLEST07337’UNDER PATENTDecember 20, 2027
- Roulette AzurPP20793Streptocarpus plant named ‘Roulette Azur’UNDER PATENTApril 29, 2028
- SpiritPP20795Streptocarpus plant named ‘Spirit’UNDER PATENTApril 29, 2028
- Roulette CherryPP20796Streptocarpus plant named ‘Roulette Cherry’UNDER PATENTApril 29, 2028
- SLSPC16-0PP24714Streptocarpus plant named ‘SLSPC16-0’UNDER PATENTDecember 27, 2032
- SLSBV08-0PP24715Streptocarpus plant named ‘SLSBV08-0’UNDER PATENTDecember 27, 2032
- SLSDB17-0PP24716Streptocarpus plant named ‘SLSDB17-0’UNDER PATENTDecember 27, 2032
- SLSBW10-0PP24737Streptocarpus plant named ‘SLSBW10-0’UNDER PATENTJanuary 7, 2033
- SLSBC09-0PP25261Streptocarpus plant named ‘SLSBC09-0’UNDER PATENTJune 13, 2033
Already in the public domain — 37 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.
- ArtemisPP12250Streptocarpus plant named ‘Artemis’PUBLIC DOMAINMay 18, 2020
- MercuryPP12253Streptocarpus plant named ‘Mercury’PUBLIC DOMAINMay 17, 2020
- ThaliaPP7958Streptocarpus plant named ThaliaPUBLIC DOMAINDecember 28, 2010
- UlyssesPP6494Streptocarpus plant named UlyssesPUBLIC DOMAINApril 22, 2007
- ElectraPP6495Streptocarpus plant named ElectraPUBLIC DOMAINApril 22, 2007
- AchillesPP6635Streptocarpus plant named AchillesPUBLIC DOMAINApril 22, 2007
- MinervaPP6394Streptocarpus plant named MinervaPUBLIC DOMAINJanuary 30, 2007
- MusePP6395Streptocarpus plant named MusePUBLIC DOMAINJanuary 30, 2007
- AriadnePP6396Streptocarpus plant named AriadnePUBLIC DOMAINJanuary 30, 2007
- OrionPP6397Streptocarpus plant named OrionPUBLIC DOMAINJanuary 30, 2007
- PegasusPP6417Streptocarpus plant named PegasusPUBLIC DOMAINJanuary 30, 2007
- JanusPP6418Streptocarpus plant named JanusPUBLIC DOMAINJanuary 30, 2007
- Rosy-FinchPP6201Distinct variety of Streptocarpus named Rosy-FinchPUBLIC DOMAINMay 1, 2006
- NancyPP5814Distinct variety of Streptocarpus named NancyPUBLIC DOMAINFebruary 7, 2005
- SelenaPP5830Distinct variety of Streptocarpus named SelenaPUBLIC DOMAINFebruary 7, 2005
- Purple MartinPP5561Distinct variety of Streptocarpus named Purple MartinPUBLIC DOMAINDecember 12, 2003
- TealPP5562Distinct variety of streptocarpus named TealPUBLIC DOMAINDecember 12, 2003
- Snow BuntingPP5626Distinct variety of streptocarpus named Snow BuntingPUBLIC DOMAINDecember 12, 2003
- RevoltePP5337Distinct variety of Streptocarpus named RevoltePUBLIC DOMAINMay 13, 2003
- AdonisPP5349Distinct variety of streptocarpus named AdonisPUBLIC DOMAINMay 13, 2003
- Swen KurenPP5363Variety of Streptocarpus named Swen KurenPUBLIC DOMAINMay 13, 2003
- FantasiePP5379Distinct variety of Streptocarpus named FantasiePUBLIC DOMAINMay 13, 2003
- SusiPP5235Distinct variety of Streptocarpus named SusiPUBLIC DOMAINDecember 28, 2002
- VreniPP5236Distinct variety of Streptocarpus named VreniPUBLIC DOMAINDecember 28, 2002
- OrchisPP5238Distinct variety of Streptocarpus named OrchisPUBLIC DOMAINDecember 28, 2002
- KathiPP5239Distinct variety of Streptocarpus named KathiPUBLIC DOMAINDecember 28, 2002
- DollyPP4945Variety of Streptocarpus named DollyPUBLIC DOMAINNovember 5, 2000
- LadyPP4946Distinct variety of Streptocarpus named LadyPUBLIC DOMAINNovember 5, 2000
- NickyPP4947Distinct variety of Streptocarpus named NickyPUBLIC DOMAINNovember 5, 2000
- HeraPP4948Distinct variety of Streptocarpus named HeraPUBLIC DOMAINNovember 5, 2000
- AuroraPP4962Distinct variety of streptocarpus named AuroraPUBLIC DOMAINNovember 5, 2000
- GretaPP4522Distinct variety of Streptocarpus named GretaPUBLIC DOMAINNovember 8, 1998
- IlsaPP4523Distinct variety of Streptocarpus named IlsaPUBLIC DOMAINNovember 8, 1998
- MarnaPP4524Distinct variety of Streptocarpus named MarnaPUBLIC DOMAINNovember 8, 1998
- OlgaPP4525Distinct variety of Streptocarpus named OlgaPUBLIC DOMAINNovember 8, 1998
- VelmaPP4527Distinct variety of streptocarpus named VelmaPUBLIC DOMAINNovember 8, 1998
- FredaPP4528Distinct variety of Streptocarpus named FredaPUBLIC DOMAINNovember 8, 1998
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.