US Plant Patent PP19436
Sweetheart
Almond variety named ‘Sweetheart’
UNDER PATENT
Still under patent. Protection ends February 15, 2027.
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
- PP19436
- Filed
- February 15, 2007
- Granted
- November 11, 2008
- Expires
- February 15, 2027
- Assignee
- UNIV CALIFORNIA
- Inventor
- GRADZIEL THOMAS; THORPE MARY ANN; BAYSINGER NANCY K
Abstract
An improved Prunus dulcis variety is provided that is well suited for serving as a replacement for the premium quality ‘Marcona’ variety (non-patented in the United States). A distinctive heart-shape kernel in combination with very high kernel lipid quality is displayed. Good bloom overlap is displayed with the widely-grown ‘Nonpareil’ variety (non-patented in the United States) and pollen is cross-compatible with ‘Nonpareil’ and all major California almond varieties. The tree exhibits an upright-spreading growth habit with good productivity. Desirable fruit and kernel characteristics for shelled and processed almond production are displayed.
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 almond tree substantially as shown and described herein.
Read the full patent: US Plant Patent PP19436 in full — the complete specification, every figure, and the file history.