US Plant Patent PP18222

DEVON ESTHER

Dianthus plant named ‘DEVON ESTHER’

PUBLIC DOMAIN

Patent expired January 12, 2026. This plant is in the public domain — anyone may propagate and sell it.

Twenty years from the filing date would end on November 14, 2025. This patent earned 59 days of term adjustment for delay at the Patent Office, which is why it runs longer.

Figure 1 of US plant patent PP18222, the photograph of DEVON ESTHER printed in the patent. — Figure 1 from US Plant Patent PP18222, 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: PP18222
Filed: November 14, 2005
Granted: November 20, 2007
Expires: January 12, 2026
Assignee: WHETMAN JOHN
Inventor: WHETMAN JOHN

Abstract

A new cultivar of Dianthus plant named ‘DEVON ESTHER’ that is characterized by pronounced compact habit, grey-green foliage, and soft magenta flowers. In combination these traits set ‘DEVON ESTHER’ apart from all other existing varieties of Dianthus known to the inventor.

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

1. A new and distinct cultivar of Dianthus plant named ‘DEVON ESTHER’ as described and illustrated herein.

Read the full patent: US Plant Patent PP18222 in full — the complete specification, every figure, and the file history.