US Plant Patent PP26837
Kay Diamond VIII
Nectarine tree named ‘Kay Diamond VIII’
UNDER PATENT
Still under patent. Protection ends January 22, 2035.
Twenty years from the filing date would end on December 15, 2034. This patent earned 38 days of term adjustment for delay at the Patent Office, which is why it runs longer.

The record
- Patent number
- PP26837
- Filed
- December 15, 2014
- Granted
- June 21, 2016
- Expires
- January 22, 2035
- Assignee
- BRADFORD LOWELL GLEN, QUISENBERRY JON M
- Inventor
- BRADFORD LOWELL GLEN; QUISENBERRY JON M
Abstract
The present invention relates to a new and distinct variety of nectarine tree, Prunus persica , broadly characterized by a medium size, vigorous, hardy, self-fertile, productive and regular bearing tree. The variety blooms during the early to mid-season and requires about 500 chilling hours. The fruit matures under the ecological conditions described in late May, with first picking on May 27, 2014. The fruit is uniformly medium to large in size, globose in shape, acidic and sweet in flavor, clingstone in type, firm and melting in texture, yellow in flesh color, and nearly full red in skin color.
Show the legal claimThe single numbered claim as granted — the legal text that defines what this patent covers.
We claim: 1. A new and distinct variety of nectarine tree, substantially as illustrated and described, that is most similar to its pollen parent, ‘Kay Diamond VII’ (U.S. Plant Pat. No. 18,715) nectarine by being self-fertile, by having showy blossoms, by requiring about 500 chilling hours, and by producing nectarines that are nearly full red in skin color, yellow in flesh color, firm in texture, globose in shape, clingstone in type, very good in flavor, and medium to large in size for the early season, but is distinguished therefrom by having globose leaf glands instead of being eglandular, by blooming about 6 days later, and by producing fruit that matures about ten days later.
Read the full patent: US Plant Patent PP26837 in full — the complete specification, every figure, and the file history.