US Plant Patent PP29095
sPg-15-1
Mahonia plant named ‘sPg-15-1’
UNDER PATENT
Still under patent. Protection ends February 12, 2036.
Twenty years from the filing date would end on December 22, 2035. This patent earned 52 days of term adjustment for delay at the Patent Office, which is why it runs longer.

The record
- Patent number
- PP29095
- Filed
- December 22, 2015
- Granted
- March 13, 2018
- Expires
- February 12, 2036
- Assignee
- CP DELAWARE INC, YAMAGUCHI SEIJU
- Inventor
- YAMAGUCHI SEIJU
Abstract
A new and distinct Mahonia hybrida plant is provided that forms attractive dark green spiny foliage. Yellow flowers are formed in the spring extending into the summer with reblooming again in about August through frost. The growth habit is upright, and the plant has been found to be hardy in U.S.D.A. Hardiness Zone No. 7 during observations to date. The plant is well suited for providing attractive ornamentation in the landscape.
Show the legal claimThe single numbered claim as granted — the legal text that defines what this patent covers.
I claim: 1. A new and distinct Mahonia hybrida plant characterized by the following characteristics: (a) exhibits an upright growth habit, (b) forms attractive narrow deep green spiny foliage, (c) commonly forms yellow flowers in the spring extending into the summer and reblooms again in about August through frost, and (d) is well suited for providing attractive ornamentation in the landscape; substantially as illustrated and described.
Read the full patent: US Plant Patent PP29095 in full — the complete specification, every figure, and the file history.