US Plant Patent PP16098
Duncan
Deutzia plant named ‘Duncan’
PUBLIC DOMAIN
Patent expired August 27, 2024. This plant is in the public domain — anyone may propagate and sell it.
Twenty years from the filing date would end on June 28, 2024. This patent earned 60 days of term adjustment for delay at the Patent Office, which is why it runs longer.

The record
- Patent number
- PP16098
- Filed
- June 28, 2004
- Granted
- November 8, 2005
- Expires
- August 27, 2024
- Assignee
- SPRING MEADOW NURSERY INC
- Inventor
- WOOD TIMOTHY D
Abstract
A new and distinct cultivar of Deutzia plant named ‘Duncan’, characterized by its compact plant habit; freely branching growth habit; bright yellow green-colored leaves; and numerous white-colored flowers.
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 Deutzia plant named ‘Duncan’, as illustrated and described.
Read the full patent: US Plant Patent PP16098 in full — the complete specification, every figure, and the file history.