US Plant Patent PP18206

Double Trouble

Helenium plant named ‘Double Trouble’

PUBLIC DOMAIN

Patent expired June 9, 2026. This plant is in the public domain — anyone may propagate and sell it.

No term adjustment or disclaimer is recorded against this patent, so this is the full statutory term — twenty years from the filing date.

Figure 1 of US plant patent PP18206, the photograph of Double Trouble printed in the patent. — Figure 1 from US Plant Patent PP18206, reproduced as printed. Photographs in a plant patent are taken by the applicant. Reproduction of the patent document is permitted; the image is shown whole and uncropped for that reason.

The record

Patent number: PP18206
Filed: June 9, 2006
Granted: November 13, 2007
Expires: June 9, 2026
Assignee: WITTEMAN & CO
Inventor: DAMEN PETRUS THOMAS

Abstract

A new and distinct cultivar of Helenium plant named ‘Double Trouble’, characterized by its upright, somewhat outwardly spreading and uniform plant habit; moderately vigorous growth habit; freely flowering habit; inflorescences with golden yellow-colored ray and disc florets; and strong peduncles that hold the inflorescences above the foliar plane.

Show the legal claimThe single numbered claim as granted — the legal text that defines what this patent covers.

1. A new and distinct Helenium plant named ‘Double Trouble’ as illustrated and described.

Read the full patent: US Plant Patent PP18206 in full — the complete specification, every figure, and the file history.