US Plant Patent PP17944

RR1

Panicum plant named ‘RR1’

PUBLIC DOMAIN

Patent expired June 5, 2026. This plant is in the public domain — anyone may propagate and sell it.

Twenty years from the filing date would end on April 1, 2025. This patent earned 430 days of term adjustment for delay at the Patent Office, which is why it runs longer.

Figure 1 of US plant patent PP17944, the photograph of RR1 printed in the patent. — Figure 1 from US Plant Patent PP17944, reproduced as printed. Photographs in a plant patent are taken by the applicant. Reproduction of the patent document is permitted; the image is shown whole and uncropped for that reason.

The record

Patent number: PP17944
Filed: April 1, 2005
Granted: August 28, 2007
Expires: June 5, 2026
Assignee: UNIV CONNECTICUT
Inventor: BRAND MARK H

Abstract

A distinct cultivar of Panicum plant named ‘RR1’, characterized by a base blue-green foliage developing into predominately dark purple-red foliage color by early to mid-summer, easy propagation, vigorous growth and compact growth habit. The unique purple-red color developing at mid-season enhances commercial value as an ornamental.

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 Panicum plant as illustrated and described.

Read the full patent: US Plant Patent PP17944 in full — the complete specification, every figure, and the file history.