Plant
Asian pear
10 US plant patents name this plant. 9 have expired, so those cultivars are free to propagate and sell. The next of the 1 still protected comes off patent on February 21, 2036.
Still under patent — 1 cultivar
Soonest to come off patent first. You may not propagate these for sale until the date shown.
- Peggy PearPP29880Asian pear tree named ‘Peggy Pear’UNDER PATENTFebruary 21, 2036
Already in the public domain — 9 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.
- Asio 6PP18876Asian pear tree named ‘Asio 6’PUBLIC DOMAINAugust 31, 2026
- Asio 5PP18976Asian pear tree named ‘Asio 5’PUBLIC DOMAINAugust 11, 2026
- Asian pear tree, 85.10-23PP17706Asian pear tree, 85.10-23PUBLIC DOMAINSeptember 20, 2025
- Asio 4PP9822Asian pear tree named `Asio 4`PUBLIC DOMAINOctober 8, 2015
- Asio 2PP9827Asian pear tree named `Asio 2`PUBLIC DOMAINSeptember 19, 2015
- asio 3PP9828Asian pear tree named "asio 3"PUBLIC DOMAINSeptember 19, 2015
- Asio 1PP9835Asian pear tree named `Asio 1`PUBLIC DOMAINSeptember 19, 2015
- Daisui LiPP6075Asian pear tree named Daisui LiPUBLIC DOMAINDecember 27, 2005
- Shin LiPP6076Asian pear tree named "Shin Li"PUBLIC DOMAINDecember 27, 2005
Botanically this is Pyrus. 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.