US Plant Patent PP31788
ET RDB 621
Rudbeckia plant named ‘ET RDB 621’
UNDER PATENT
Still under patent. Protection ends May 7, 2039.
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
- PP31788
- Filed
- May 7, 2019
- Granted
- May 19, 2020
- Expires
- May 7, 2039
- Inventor
- BISSCHOP ELISABETH; NOORDHUIS BART
Abstract
A new and distinct cultivar of Rudbeckia plant named ‘ET RDB 621’, characterized by its compact, upright to somewhat outwardly spreading and mounded plant habit; freely branching growth habit; freely flowering habit; large single-type inflorescences with yellow orange and greyed orange bi-colored ray florets positioned above the foliar plane on strong peduncles; and good postproduction and garden performance.
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 Rudbeckia plant named ‘ET RDB 621’ as illustrated and described.
Read the full patent: US Plant Patent PP31788 in full — the complete specification, every figure, and the file history.