US Plant Patent PP23728
AKH L4
Stevia plant named ‘AKH L4’
UNDER PATENT
Still under patent. Protection ends June 25, 2031.
Twenty years from the filing date would end on January 18, 2031. This patent earned 158 days of term adjustment for delay at the Patent Office, which is why it runs longer.

The record
- Patent number
- PP23728
- Filed
- January 18, 2011
- Granted
- July 9, 2013
- Expires
- June 25, 2031
- Inventor
- RAMON ALVAREZ BRITOS EDGAR
Abstract
A new and distinct cultivar of stevia plant named ‘AKH L4’, characterized by its combination of early harvest cycle, dark green leaves, medium number of nodes on the main stem, high number of basal buds, high Rebaudiosido A of total Glycoside Steviol content, and high yielding of dried leaves at harvest.
Show the legal claimThe single numbered claim as granted — the legal text that defines what this patent covers.
What is claimed is: 1. A new and distinct cultivar of stevia plant named ‘AKH L4’, substantially as herein shown and described.
Read the full patent: US Plant Patent PP23728 in full — the complete specification, every figure, and the file history.