Plant
Zelkova
4 US plant patents name this plant. 2 have expired, so those cultivars are free to propagate and sell. The next of the 2 still protected comes off patent on November 24, 2029.
Still under patent — 2 cultivars
Soonest to come off patent first. You may not propagate these for sale until the date shown.
- JSC KingsthreePP22107Zelkova tree named ‘JSC Kingsthree’UNDER PATENTNovember 24, 2029
- ZSMTFPP34322Zelkova tree named ‘ZSMTF’UNDER PATENTApril 20, 2041
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.
- Zelkova treePP5687PUBLIC DOMAINJuly 9, 2004
- serrataPP5080Zelkova serrata treePUBLIC DOMAINDecember 10, 2001
Botanically this is Zelkova. 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.