US Plant Patent PP18803
Pink Double Delight
Echinacea plant named ‘Pink Double Delight’
UNDER PATENT
Still under patent. Protection ends October 4, 2026.
Twenty years from the filing date would end on September 27, 2026. This patent earned 7 days of term adjustment for delay at the Patent Office, which is why it runs longer.

The record
- Patent number
- PP18803
- Filed
- September 27, 2006
- Granted
- May 13, 2008
- Expires
- October 4, 2026
- Assignee
- MIJ HOLTMAAT
- Inventor
- BLOM ARIE
Abstract
A new and distinct cultivar of Echinacea plant named ‘Pink Double Delight’, characterized by its upright and somewhat outwardly spreading plant habit; moderately vigorous growth habit; freely basal branching habit; and large single inflorescences with pink-colored ray florets and darker pink-colored disc florets.
Show the legal claimThe single numbered claim as granted — the legal text that defines what this patent covers.
1. A new and distinct Echinacea plant named ‘Pink Double Delight’ as illustrated and described.
Read the full patent: US Plant Patent PP18803 in full — the complete specification, every figure, and the file history.