US Plant Patent PP18520
Late Seedless Mandarin
Mandarin tree named ‘Late Seedless Mandarin’
PUBLIC DOMAIN
Patent expired January 18, 2026. This plant is in the public domain — anyone may propagate and sell it.
No term adjustment or disclaimer is recorded against this patent, so this is the full statutory term — twenty years from the filing date.

The record
- Patent number
- PP18520
- Filed
- January 18, 2006
- Granted
- February 26, 2008
- Expires
- January 18, 2026
- Assignee
- FUTURE FRUIT LLC
- Inventor
- RECUPERO GIUSEPPE REFORGIATO; RUSSO GIUSEPPE; RECUPERO SANTO
Abstract
A new and distinct seedless mandarin named ‘Late Seedless Mandarin’ is characterized by late fruit production in April through to late March in the citrus areas of Sicily, Italy and Riverside, Calif. The tree has high yields and bears from year three onwards. It is further characterized by being a triploid and genetically seedless. The seedless fruit is well sized, has a typical mandarin shape (round, flattened) and has acceptable rind thickness with a smooth texture. The fruit has good acid/sugar ratios, has acceptable shipping characteristics, internal and external color is excellent at harvest, and eating quality is excellent. The fruit has an average juice content of about 45% to about 60% at harvest.
Show the legal claimThe single numbered claim as granted — the legal text that defines what this patent covers.
1. A new and distinct variety of a seedless mandarin tree as described and illustrated called ‘Late Seedless Mandarin’ that is characterized as a triploid having late fruit production from about late March through to about mid May in the citrus areas of Sicily, Italy and Riverside, Calif., the trees coming into bearing by year 3 with seedless fruit having a typically mandarin flattened round shape, an average juice content at harvest of about 45% to about 60% with smooth skin texture, and having acceptable rind thickness, acid-sugar ratios, color and pulp eating quality.
Read the full patent: US Plant Patent PP18520 in full — the complete specification, every figure, and the file history.