US Plant Patent PP23747
Daybreak
Berberis thunbergii plant named ‘Daybreak’
UNDER PATENT
Still under patent. Protection ends February 1, 2032.
Twenty years from the filing date would end on November 10, 2031. This patent earned 83 days of term adjustment for delay at the Patent Office, which is why it runs longer.

The record
- Patent number
- PP23747
- Filed
- November 10, 2011
- Granted
- July 16, 2013
- Expires
- February 1, 2032
- Inventor
- DIRR MICHAEL A; KARDOS JOSHUA H
Abstract
A new and distinct cultivar of Berberis thunbergii plant named ‘Daybreak’, characterized by its compact, mounding growth habit, small, lustrous, medium green foliage that turns bright yellow in fall, reddish-orange flowers produced in abundance from spring to fall, greenish-tan to reddish-green fruits, and root/crown cold hardiness to USDA Hardiness Zone 7.
Show the legal claimThe single numbered claim as granted — the legal text that defines what this patent covers.
We claim: 1. A new and distinct Berberis thunbergii plant named ‘Daybreak’, substantially as illustrated and described herein.
Read the full patent: US Plant Patent PP23747 in full — the complete specification, every figure, and the file history.