US Plant Patent PP15702
Ilex hybrid variety named Xia Yen
PUBLIC DOMAIN
Patent expired December 22, 2019. This plant is in the public domain — anyone may propagate and sell it.
No term adjustment or disclaimer is recorded against this patent, so this is the full statutory term — twenty years from the filing date.

The record
- Patent number
- PP15702
- Filed
- December 22, 1999
- Granted
- March 29, 2005
- Expires
- December 22, 2019
- Assignee
- POUNDERS JR CECIL T
- Inventor
- POUNDERS JR CECIL T
No cultivar name of record
This patent does not name the plant, which is unusual for its date — by the mid-1990s nearly every plant patent carried a cultivar name. The grant identifies this one by its number and by a written description instead.
Nothing here is missing from our records: the patent itself states no name. Where one exists we show it, and we do not invent one.
Abstract
Xia Yen is a distinctive new evergreen holly distinguished from all other forms of Ilex known to me in that it combines a unique combination of desirable landscape and production traits from Ilex opaca and Ilex cassine. Plants have distinctive lustrous leaves, produce an erect narrow symmetrical crown without extensive shearing, and have the environmental tolerances of the Ilex opaca parent. Xia Yen is being marketed bearing the Dixie Star Holly trademark.
Show the legal claimThe single numbered claim as granted — the legal text that defines what this patent covers.
1. A new and distinct variety of Ilex×attenuata plant named ‘Xia Yen’, as illustrated and described particularly as to the unique combination of: (a) annual abundant crops of fruit maturing to vibrant red in early fall then persisting until spring, (b) evergreen, fine textured leaves which retain lustrous green coloration even when plant is heavily berried, (c) produces an erect narrow symmetrical pyramidal crown without extensive shearing, (d) environmental tolerance equivalent to I. opaca .
Read the full patent: US Plant Patent PP15702 in full — the complete specification, every figure, and the file history.