US Plant Patent PP26600
UMNAZ 493
Rhododendron plant named ‘UMNAZ 493’
UNDER PATENT
Still under patent. Protection ends July 4, 2034.
Twenty years from the filing date would end on January 14, 2034. This patent earned 171 days of term adjustment for delay at the Patent Office, which is why it runs longer.

The record
- Patent number
- PP26600
- Filed
- January 14, 2014
- Granted
- April 12, 2016
- Expires
- July 4, 2034
- Assignee
- UNIV MINNESOTA, HOKANSON STAN C, MCNAMARA STEVE
- Inventor
- HOKANSON STAN C; MCNAMARA STEVE
Abstract
A new cultivar of hybrid Rhododendron plant named ‘UMNAZ 493’ that is characterized by its floriferous blooming habit and an extended bloom period that begins in late May to early June in Chanhassen, Minn. and lasts for up to 6 weeks, its abundance of fragrant, double flowers that are pink in color, its upright, mounded and densely branched plant habit reaching 2.2 m in height and 1.9 m in spread, and its good cold hardiness with flower buds that are resistant to cold damage and consistently bloom even when exposed to temperatures as low as −30° F.
Show the legal claimThe single numbered claim as granted — the legal text that defines what this patent covers.
It is claimed: 1. A new and distinct cultivar of Rhododendron plant named ‘UMNAZ 493’ as herein illustrated and described.
Read the full patent: US Plant Patent PP26600 in full — the complete specification, every figure, and the file history.