US Plant Patent PP19331
Ralto
Pieris plant named ‘Ralto’
UNDER PATENT
Still under patent. Protection ends October 11, 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
- PP19331
- Filed
- October 11, 2007
- Granted
- October 14, 2008
- Expires
- October 11, 2027
- Inventor
- VAN OPSTAL RONNIE ADRIANUS ANTONIUS
Abstract
A new and distinct cultivar of Pieris plant named ‘Ralto’, characterized by its upright and outwardly spreading plant habit; green and yellow variegated leaves; large inflorescences with numerous red purple-colored flowers; and good garden performance.
Show the legal claimThe single numbered claim as granted — the legal text that defines what this patent covers.
1. A new and distinct cultivar of Pieris plant named ‘Ralto’ as illustrated and described.
Read the full patent: US Plant Patent PP19331 in full — the complete specification, every figure, and the file history.