US Plant Patent PP15886
Lily plant named Sorbonne
PUBLIC DOMAIN
Patent expired July 19, 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
- PP15886
- Filed
- July 19, 1999
- Granted
- July 19, 2005
- Expires
- July 19, 2019
- Assignee
- VLETTER & DEN HAAN BEHEER B V
- Inventor
- VAN DER VOORT CEES A
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
A new and distinct cultivar of Lily plant named ‘Sorbonne’ characterized by having soft, pinkish-red color, white flower tips, upright flowers, and vigorous growth habit.
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 Lily plant named ‘Sorbonne’ having a vigorous growth habitat and upright, pink flowers, as illustrated and described herein.
Read the full patent: US Plant Patent PP15886 in full — the complete specification, every figure, and the file history.