US Plant Patent PP15846
USPHL03
Phlox plant named ‘USPHL03’
PUBLIC DOMAIN
Patent expired July 24, 2024. This plant is in the public domain — anyone may propagate and sell it.
Twenty years from the filing date would end on April 19, 2024. This patent earned 96 days of term adjustment for delay at the Patent Office, which is why it runs longer.

The record
- Patent number
- PP15846
- Filed
- April 19, 2004
- Granted
- July 12, 2005
- Expires
- July 24, 2024
- Assignee
- PLANT 21 LLC
- Inventor
- SAKAZAKI USHIO
Abstract
A new and distinct cultivar of Phlox plant named ‘USPHL03’, characterized by its upright and outwardly spreading plant habit; vigorous growth habit; attractive dark purple-colored flowers with a red purple-colored star pattern at the center; freely and continuous flowering habit; and good garden performance.
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 Phlox plant named ‘USPHL03’, as illustrated and described.
Read the full patent: US Plant Patent PP15846 in full — the complete specification, every figure, and the file history.