US Plant Patent PP26055
Plumsweet XVI
Interspecific tree named ‘Plumsweet XVI’
UNDER PATENT
Still under patent. Protection ends May 29, 2034.
Twenty years from the filing date would end on December 16, 2033. This patent earned 164 days of term adjustment for delay at the Patent Office, which is why it runs longer.

The record
- Patent number
- PP26055
- Filed
- December 16, 2013
- Granted
- November 10, 2015
- Expires
- May 29, 2034
- Inventor
- BRADFORD LOWELL GLEN; QUISENBERRY JON MICHAEL
Abstract
The present invention relates to an interspecific tree and more particularly to a new and distinct variety broadly characterized by a medium size, vigorous, hardy, and productive tree. Being self-unfruitful, the present variety requires cross pollination from an apricot, interspecific, or plum that blooms during the mid to late season. The present variety produces a heavy bloom with an abundant amount of pollen to entice good bee activity to facilitate pollination. The fruit matures under the ecological conditions described during July, with first picking on Jul. 8, 2013, and can hang on the tree for up to two weeks. The fruit is uniformly large in size, a green and red two-tone in skin color, full red in flesh color, clingstone in type, oblate in shape, firm in texture, juicy, and very good 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 interspecific Prunus sp. tree, substantially as illustrated and described, that is most similar to ‘Plumsweet XIV’ (U.S. Plant Pat. No. 23,686) interspecific tree, by being self-unfruitful and by producing fruit that is a green and red two-tone in skin color, full red in flesh color, firm in texture, juicy, and sweet in flavor, but is distinguished therefrom by producing fruit that is much more oblate in shape, that is larger in size, and that is less prone to skin cracking.
Read the full patent: US Plant Patent PP26055 in full — the complete specification, every figure, and the file history.