Genus
Campsis
11 US plant patents have been granted in this genus. 3 are already in the public domain — anyone may propagate and sell them. The next of the 8 still protected comes off patent on January 10, 2027.
Still under patent — 8 cultivars
Soonest to come off patent first. You may not propagate these for sale until the date shown.
- RutcamPP19415Campsis plant named ‘Rutcam’UNDER PATENTJanuary 10, 2027
- TarantellaPP19657Campsis plant named ‘Tarantella’UNDER PATENTFebruary 4, 2028
- Takarazuka ZujinPP23904Campsis plant named ‘Takarazuka Zujin’UNDER PATENTMay 12, 2032
- Takarazuka FresaPP23917Campsis plant named ‘Takarazuka Fresa’UNDER PATENTMay 12, 2032
- Takarazuka YellowPP23918Campsis plant named ‘Takarazuka Yellow’UNDER PATENTMay 13, 2032
- Mincamja3PP32931Campsis plant named ‘Mincamja3’UNDER PATENTSeptember 30, 2039
- HOCH128PP34699Campsis plant named ‘HOCH128’UNDER PATENTFebruary 10, 2042
- MINCAMROUG13PP37083Campsis plant named ‘MINCAMROUG13’UNDER PATENTNovember 14, 2044
Already in the public domain — 3 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.
- HOMRPP18394Campsis plant named ‘HOMR’PUBLIC DOMAINAugust 31, 2026
- HuitanPP16656Campsis plant named ‘Huitan’PUBLIC DOMAINSeptember 9, 2024
- Takarazuka variegatedPP12245Campsis radicans named ‘Takarazuka variegated’PUBLIC DOMAINOctober 4, 2019
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.