US Plant Patent PP21308
Kiastgrana
Aster plant named ‘Kiastgrana’
UNDER PATENT
Still under patent. Protection ends May 4, 2029.
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
- PP21308
- Filed
- May 4, 2009
- Granted
- September 21, 2010
- Expires
- May 4, 2029
- Assignee
- KIENTZLER GMBH & CO KG
- Inventor
- NIEDERLAENDER ANDREAS
Abstract
A new and distinct cultivar of Aster plant named ‘Kiastgrana’, characterized by its compact, upright, uniform and mounded plant habit; freely branching growth habit; semi-double type inflorescences with red purple-colored ray florets; and tolerance to Powdery Mildew.
Show the legal claimThe single numbered claim as granted — the legal text that defines what this patent covers.
1. A new and distinct Aster plant named ‘Kiastgrana’ as illustrated and described.
Read the full patent: US Plant Patent PP21308 in full — the complete specification, every figure, and the file history.