US Plant Patent PP29972
Double Bubble
Dianthus plant named ‘Double Bubble’
UNDER PATENT
Still under patent. Protection ends February 1, 2038.
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
- PP29972
- Filed
- February 1, 2018
- Granted
- December 11, 2018
- Expires
- February 1, 2038
- Assignee
- WALTERS GARDENS INC, HANSEN HANS A
- Inventor
- HANSEN HANS A
Abstract
A new and unique plant cultivar of perennial carnation or pinks, Dianthus plant named ‘Double Bubble’ with numerous, small, fully-double, lightly-fragrant flowers producing a rounded full face. Medium pink petals with lighter pink toward apex are irregularly and finely toothed on the distal margin. Heavily branched stems cover the top of the plant with flowers for about six weeks. The habit is compact with long, thin, blue-green foliage.
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 Dianthus plant named ‘Double Bubble’ essentially as herein described and illustrated.
Read the full patent: US Plant Patent PP29972 in full — the complete specification, every figure, and the file history.