US Plant Patent PP32453
RUDFA538
Rudbeckia plant named ‘RUDFA538’
UNDER PATENT
Still under patent. Protection ends February 15, 2040.
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
- PP32453
- Filed
- February 15, 2020
- Granted
- November 10, 2020
- Expires
- February 15, 2040
- Inventor
- HOLTMAAT HENRICUS MARIA JOSEPH
Abstract
A new cultivar of Rudbeckia plant named ‘RUDFA538’ that is characterized by its vigorous growth habit, yet compact plant habit, its inflorescences with an average of 4 whorls of ray florets, its very floriferous blooming habit, and its inflorescences with ray florets that are grey-yellow to yellow when opening and changes to grey-purple to grey-orange when fully open.
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 Rudbeckia plant named ‘RUDFA538’ substantially as herein illustrated and described.
Read the full patent: US Plant Patent PP32453 in full — the complete specification, every figure, and the file history.