US Plant Patent PP28505
Pearl Princess III
Peach tree named ‘Pearl Princess III’
UNDER PATENT
Still under patent. Protection ends January 18, 2036.
Twenty years from the filing date would end on December 11, 2035. This patent earned 38 days of term adjustment for delay at the Patent Office, which is why it runs longer.

The record
- Patent number
- PP28505
- Filed
- December 11, 2015
- Granted
- October 10, 2017
- Expires
- January 18, 2036
- 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 peach tree, Prunus persica , broadly characterized by a small to medium size, moderately weak, hardy, self-fertile, productive and regular bearing tree. The variety blooms during the early season and requires about 350 chilling hours. The fruit matures under the ecological conditions described in early June, with first picking on Jun. 3, 2015. The fruit is uniform, large in size, globose in shape, clingstone in type, firm and melting in texture, mostly red in skin color, white in flesh color, and sub-acid in flavor.
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 peach tree, substantially as illustrated and described, that is most similar to its seed parent, ‘Pearl Princess V’ (U.S. Plant Pat. No. 19,919) peach, by having showy blossoms, by having reniform leaf glands, by being self-fertile, and by producing white flesh peaches that are mostly red in skin color, nearly globose in shape, and firm in texture, but is distinguished therefrom by having a smaller and less vigorous tree, by blooming earlier, by requiring less chilling hours, and by producing fruit that is clingstone instead of freestone in type, that is somewhat lower in acid, and that matures about seven days earlier.
Read the full patent: US Plant Patent PP28505 in full — the complete specification, every figure, and the file history.