US Plant Patent PP23385
PIIVIB-I
Viburnum plant name ‘PIIVIB-I’
UNDER PATENT
Still under patent. Protection ends August 24, 2031.
Twenty years from the filing date would end on May 6, 2031. This patent earned 110 days of term adjustment for delay at the Patent Office, which is why it runs longer.

The record
- Patent number
- PP23385
- Filed
- May 6, 2011
- Granted
- February 12, 2013
- Expires
- August 24, 2031
- Inventor
- DIRR MICHAEL A
Abstract
A new and distinct cultivar of Viburnum plant named ‘PIIVIB-I’, characterized by its compact, mounding growth habit, small, lustrous, dark green, evergreen foliage, white flowers produced in abundance even on young plants, clusters of red fruit that turn black when mature.
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 named ‘PIIVIB-I’, substantially as illustrated and described herein.
Read the full patent: US Plant Patent PP23385 in full — the complete specification, every figure, and the file history.