US Plant Patent PP15523
Conayule
Ilex×koehneana plant named ‘Conayule’
PUBLIC DOMAIN
Patent expired December 12, 2023. This plant is in the public domain — anyone may propagate and sell it.
Twenty years from the filing date would end on November 5, 2023. This patent earned 37 days of term adjustment for delay at the Patent Office, which is why it runs longer.

The record
- Patent number
- PP15523
- Filed
- November 5, 2003
- Granted
- February 1, 2005
- Expires
- December 12, 2023
- Assignee
- CP DELAWARE INC
- Inventor
- MESERVE KATHLEEN K
Abstract
A new and distinct Ilex cultivar is provided which originated by the crossing of an unnamed and unpatented plant of Ilex aquifolium and unnamed and unpatented plant of Ilex latifolia. The resulting evergreen plant displays an attractive moderate to fast growing upright moderately narrow pyramidal growth habit. Showy red fruit is formed in abundance that commonly is retained on the plant well into February. Good cold tolerance as well as drought tolerance are exhibited. The plant can be grown to provide attractive ornamentation in the landscape throughout the year as a specimen planting or as a screen or hedge.
Show the legal claimThe single numbered claim as granted — the legal text that defines what this patent covers.
1. A new and distinct Ilex×koehneana plant having the following combination of characteristics: (a) displays a moderate to fast growing upright moderately narrow pyramidal growth habit, (b) forms in abundance showy red fruit that commonly is retained on the plant well into February, (c) displays improved cold hardiness, and (d) displays good drought tolerance in established plantings; substantially as shown and described.
Read the full patent: US Plant Patent PP15523 in full — the complete specification, every figure, and the file history.