US Plant Patent PP18668
BLACKRED III
Interspecific tree named ‘BLACKRED III’
UNDER PATENT
Still under patent. Protection ends December 7, 2026.
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
- PP18668
- Filed
- December 7, 2006
- Granted
- March 25, 2008
- Expires
- December 7, 2026
- Assignee
- BRADFORD LOWELL GLEN
- Inventor
- BRADFORD LOWELL GLEN
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, plum, or interspecific that blooms during the early to mid season. The fruit matures under the ecological conditions described during late July, with first picking on Jul. 29, 2006. The fruit is uniformly large in size, black in skin color, clingstone in type, somewhat cordate in shape, red in flesh color, very firm in texture, and outstanding in flavor.
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 interspecific Prunus sp. tree, substantially as illustrated and described, that is similar to ‘Plumsweettwo’ (U.S. Plant Pat. No. 14,196) plum by being self-unfruitful and by producing fruit that ripens in late July, that is red in flesh color, and that is clingstone in type, but is distinguished therefrom by producing much more pollen, by being more productive, and by producing fruit that is black instead of purple in skin color, that is larger in size, that is somewhat cordate instead of oblate in shape, and that has less freckling on the skin.
Read the full patent: US Plant Patent PP18668 in full — the complete specification, every figure, and the file history.