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The Patent Garden

US Plant Patent PP18467

HB 129

Hybrid variety of Texas X kentucky bluegrass designated ‘HB 129’

PUBLIC DOMAIN

Patent expired January 7, 2026. This plant is in the public domain — anyone may propagate and sell it.

Twenty years from the filing date would end on August 5, 2025. This patent earned 155 days of term adjustment for delay at the Patent Office, which is why it runs longer.

Figure 1 of US plant patent PP18467, the photograph of HB 129 printed in the patent.
Figure 1 from US Plant Patent PP18467, 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
PP18467
Filed
August 5, 2005
Granted
January 29, 2008
Expires
January 7, 2026
Inventor
HARDISON JOHN R; BURR JAY B; FRELICH JAMES R; MARQUEZ GEORGE

Abstract

A hybrid variety of Texas bluegrass×Kentucky bluegrass as described, characterized by rapid establishment; a light green, dense turf; a wide leaf blade; aggressive rhizome growth; a reduced level of cotton on the seed; and a medium to high seed yield potential.

Show the legal claimThe single numbered claim as granted — the legal text that defines what this patent covers.

1. A new and distinct hybrid variety of Texas bluegrass×Kentucky bluegrass plant, as herein illustrated and described and characterized by rapid establishment; a light green, dense turf; a wide leaf blade; aggressive rhizome growth; a reduced level of cotton on the seed; and a medium to high seed yield potential.

Read the full patent: US Plant Patent PP18467 in full — the complete specification, every figure, and the file history.