US Plant Patent PP18826
L99-233
Sugar cane variety named ‘L99-233’
UNDER PATENT
Still under patent. Protection ends November 16, 2026.
Twenty years from the filing date would end on November 15, 2026. This patent earned 1 days of term adjustment for delay at the Patent Office, which is why it runs longer.

The record
- Patent number
- PP18826
- Filed
- November 15, 2006
- Granted
- May 20, 2008
- Expires
- November 16, 2026
- Assignee
- UNIV LOUISIANA STATE
- Inventor
- GRAVOIS KENNETH A; BISCHOFF KEITH P
Abstract
A new variety of sugarcane, identified as ‘L99-233’, is disclosed having superior sugarcane rust disease resistance, excellent ratooning ability, and high sugar/sucrose content and cane yield characteristics.
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 Saccharum sp. plant named ‘L99-233’, as described and illustrated in the specification herein.
Read the full patent: US Plant Patent PP18826 in full — the complete specification, every figure, and the file history.