Plant
Maple
24 US plant patents name this plant. 14 have expired, so those cultivars are free to propagate and sell. The next of the 10 still protected comes off patent on September 19, 2028.
Still under patent — 10 cultivars
Soonest to come off patent first. You may not propagate these for sale until the date shown.
- Katie ColePP21076Red maple tree named ‘Katie Cole’UNDER PATENTSeptember 19, 2028
- JFS-KW202PP21838Maple tree named ‘JFS-KW202’UNDER PATENTAugust 9, 2029
- JFS-KW78PP25301Red maple tree named ‘JFS-KW78’UNDER PATENTSeptember 5, 2033
- MillerPP28139Red maple tree named ‘Miller’UNDER PATENTAugust 12, 2034
- JFS-KW187PP27545Maple tree named ‘JFS-KW187’UNDER PATENTAugust 11, 2035
- JFS-KW249PP27985Maple tree named ‘JFS-KW249’UNDER PATENTDecember 16, 2035
- RustyAllenPP32033Maple tree named ‘RustyAllen’UNDER PATENTJuly 1, 2039
- RVF-1PP35031Red maple tree named ‘RVF-1’UNDER PATENTApril 20, 2042
- INAG-E61PP35081Maple tree named ‘INAG-E61’UNDER PATENTOctober 3, 2042
- WW WarrenPP36538Red maple tree named ‘WW Warren’UNDER PATENTMay 14, 2044
Already in the public domain — 14 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.
- Frank JrPP16769Red Maple tree named ‘Frank Jr.’PUBLIC DOMAINJune 14, 2025
- RT4PP16652Red Maple tree named ‘RT4’PUBLIC DOMAINDecember 26, 2024
- Autumn SpirePP7803Red maple tree named Autumn SpirePUBLIC DOMAINMay 22, 2010
- WarrenredPP7433Maple tree named `Warrenred`PUBLIC DOMAINJanuary 5, 2010
- KeithsformPP7529Maple tree named `Keithsform`PUBLIC DOMAINJanuary 5, 2010
- LandsburgPP6977Red Maple -- Landsburg cultivarPUBLIC DOMAINApril 18, 2008
- Red maple named WandellPP6993PUBLIC DOMAINFebruary 19, 2008
- CelzamPP7279Seedless hybrid maple tree named CelzamPUBLIC DOMAINJuly 24, 2007
- MareltoiPP6594Maple tree named MareltoiPUBLIC DOMAINJanuary 12, 2007
- VasePP5148Red maple tree named VasePUBLIC DOMAINAugust 26, 2002
- NorthwoodPP5053Red maple treePUBLIC DOMAINJune 22, 2001
- DeborahPP4944Maple called DeborahPUBLIC DOMAINSeptember 17, 2000
- Red maplePP4864PUBLIC DOMAINJuly 23, 2000
- Maple treePP4392PUBLIC DOMAINDecember 20, 1997
Botanically this is Acer. 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.