US Plant Patent PP19588
Red Ryan
Nectarine tree named ‘Red Ryan’
UNDER PATENT
Still under patent. Protection ends January 12, 2027.
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
- PP19588
- Filed
- January 12, 2007
- Granted
- December 23, 2008
- Expires
- January 12, 2027
- Inventor
- ZAIGER GARY NEIL; GARDNER LEITH MARIE; ZAIGER GRANT GENE
Abstract
A new and distinct variety of nectarine tree. The following features of the tree and its fruit are characterized with the tree budded on ‘Nemagaurd’ Rootstock (non-patented), grown on Handford sandy loam soil with Storie Index rating 95, in USDA Hardiness Zone 9, near Modesto, California, with standard commercial fruit growing practices, such as pruning, thinning, spraying, irrigation and fertilization. Its novelty consist of the following combination of desirable features: 1. Fruit ripening in the early maturity season. 2. Fruit with a high degree of attractive red skin color. 3. Heavy and regular production of large size fruit. 4. Having a low winter chilling requirement of approximately 300 hours at or below 45° F. 5. Vigorous and upright growth of tree. 6. Fruit with good flavor and eating quality.
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 nectarine tree, substantially as illustrated and described, characterized by its large size, vigorous, upright growth, with a low winter chilling requirement of approximately 300 hours at or below 45° F., being a regular and productive bearer of large size, yellow flesh clingstone fruit with good flavor and eating quality; the fruit is further characterized by its attractive red skin color, firm flesh, with good handling and shipping qualities.
Read the full patent: US Plant Patent PP19588 in full — the complete specification, every figure, and the file history.