US Plant Patent PP36758
ROBLEZN
Rhododendron plant named ‘ROBLEZN’
UNDER PATENT
Still under patent. Protection ends November 4, 2044.
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
- PP36758
- Filed
- November 4, 2024
- Granted
- June 24, 2025
- Expires
- November 4, 2044
- Assignee
- LEE ROBERT EDWARD, PDSI
- Inventor
- LEE ROBERT EDWARD
Abstract
A new and distinct cultivar of Rhododendron plant named ‘Roblezn’ is disclosed, characterized by unique red-purple flowers colored Red-Purple 71A with an overall flush of N74B. Central petal section is irregularly dotted Greyed-Purple N186D. Plants bloom intermittently from early Spring until Fall. Plants have a strong root system, superior landscape qualities and are tolerant of pests. The new cultivar is a Rhododendron , suitable for ornamental garden purposes.
Show the legal claimThe single numbered claim as granted — the legal text that defines what this patent covers.
What is claimed is: 1. A new and distinct cultivar of Rhododendron plant named ‘Roblezn’ as herein illustrated and described.
Read the full patent: US Plant Patent PP36758 in full — the complete specification, every figure, and the file history.