US Plant Patent PP23178
PIILAG-III
Lagerstroemia plant named ‘PIILAG-III’
UNDER PATENT
Still under patent. Protection ends July 1, 2031.
Twenty years from the filing date would end on June 1, 2030. This patent earned 395 days of term adjustment for delay at the Patent Office, which is why it runs longer.

The record
- Patent number
- PP23178
- Filed
- June 1, 2010
- Granted
- November 13, 2012
- Expires
- July 1, 2031
- Inventor
- DIRR MICHAEL A
Abstract
A new and distinct cultivar of Lagerstroemia plant named ‘PIILAG-III’, characterized by its compact, upright intermediate growth habit, red-purple new growth and dark green foliage in summer, red-purple fall color, true red flowers, and resistance to powdery mildew and Cercospora leaf spot.
Show the legal claimThe single numbered claim as granted — the legal text that defines what this patent covers.
1. A new and distinct Lagerstroemia plant named ‘PIILAG-III’, as illustrated and described herein.
Read the full patent: US Plant Patent PP23178 in full — the complete specification, every figure, and the file history.