US Plant Patent PP23590
Little Henry
Rudbeckia plant named ‘Little Henry’
UNDER PATENT
Still under patent. Protection ends December 28, 2031.
Twenty years from the filing date would end on October 17, 2031. This patent earned 72 days of term adjustment for delay at the Patent Office, which is why it runs longer.

The record
- Patent number
- PP23590
- Filed
- October 17, 2011
- Granted
- May 7, 2013
- Expires
- December 28, 2031
- Assignee
- TERRA NOVA NURSERIES INC, KORLIPARA HARINI
- Inventor
- KORLIPARA HARINI
Abstract
A new and distinct Rudbeckia subtomentosa plant named ‘Little Henry’ characterized by inflorescences with quilled, yellow ray florets, a medium, upright habit, and excellent vigor.
Show the legal claimThe single numbered claim as granted — the legal text that defines what this patent covers.
I claim: 1. A new and distinct Rudbeckia plant as herein illustrated and described.
Read the full patent: US Plant Patent PP23590 in full — the complete specification, every figure, and the file history.