US Plant Patent PP17751
Duvone
Viburnum plant named ‘Duvone’
PUBLIC DOMAIN
Patent expired June 30, 2025. This plant is in the public domain — anyone may propagate and sell it.
Twenty years from the filing date would end on March 8, 2025. This patent earned 114 days of term adjustment for delay at the Patent Office, which is why it runs longer.

The record
- Patent number
- PP17751
- Filed
- March 8, 2005
- Granted
- May 22, 2007
- Expires
- June 30, 2025
- Assignee
- DUVALL W ANDREW
- Inventor
- DUVALL W ANDREW
Abstract
A new and distinct viburnum plant named ‘Duvone’ which is distinguished by the same characteristics which make it a valuable ornamental plant; specifically, abundant spicy fragrant flowers, glossy foliage, multi-hued autumn color developing and holding after most deciduous plants have defoliated, and slow growth and tidy habit suitable for smaller scale low maintenance landscapes.
Show the legal claimThe single numbered claim as granted — the legal text that defines what this patent covers.
1. A new and distinct viburnum plant originating as a sport of Viburnum×burkwoodii ‘Sarcoxie’ as herein illustrated and described, a shrub characterized by abundant fragrant flowers, glossy foliage, late fall color and compact habit.
Read the full patent: US Plant Patent PP17751 in full — the complete specification, every figure, and the file history.