US Plant Patent PP18669
YELLOWSWEET X
Interspecific tree named ‘YELLOWSWEET X’
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
- PP18669
- 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, interspecific, or plum that blooms during the early to mid season. The fruit matures under the ecological conditions described during mid August, with first picking on Aug. 19, 2006. The fruit is uniformly medium in size, yellow in skin color, clingstone in type, globose in shape, firm in texture, and mildly acidic and sweet 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 most similar to its seed parent, ‘BRADGREEN’ (U.S. Plant Pat. No. 8,498) plum, by being self-unfruitful and by producing fruit that is medium in size and sweet in flavor, but is distinguished therefrom by blooming about seven days later, by being more productive, and by producing fruit that is predominantly yellow instead of green in skin color and that matures about two weeks earlier.
Read the full patent: US Plant Patent PP18669 in full — the complete specification, every figure, and the file history.