Genus
Trifolium
7 US plant patents have been granted in this genus. 0 are already in the public domain — anyone may propagate and sell them. The next of the 7 still protected comes off patent on March 16, 2034.
Still under patent — 7 cultivars
Soonest to come off patent first. You may not propagate these for sale until the date shown.
- TFLGG01-0PP25885Trifolium plant named ‘TFLGG01-0’UNDER PATENTMarch 16, 2034
- TFLRE04-0PP25907Trifolium plant name ‘TFLRE04-0’UNDER PATENTMarch 16, 2034
- TFLRG05-0PP25936Trifolium plant named ‘TFLRG05-0’UNDER PATENTMarch 19, 2034
- TFLRS03-0PP26695Trifolium plant named ‘TFLRS03-0’UNDER PATENTAugust 15, 2034
- TRIFPOT002PP28387Trifolium plant named ‘TRIFPOT002’UNDER PATENTFebruary 9, 2036
- TRIFPOT001PP28425Trifolium plant named ‘TRIFPOT001’UNDER PATENTFebruary 9, 2036
- Coretta CloverPP36878Trifolium plant named ‘Coretta Clover’UNDER PATENTNovember 11, 2044
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.