US Plant Patent PP33246
Oz Hunter
Ozark chestnut tree named ‘Oz Hunter’
UNDER PATENT
Still under patent. Protection ends April 16, 2040.
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
- PP33246
- Filed
- April 16, 2020
- Granted
- July 13, 2021
- Expires
- April 16, 2040
- Assignee
- BOST STEPHEN H
- Inventor
- BOST STEPHEN H
Abstract
‘Oz Hunter’ is a new and distinct North American Castanea cultivar that is blight-resistant, precocious and a producer of heavy annual crops of one to six nuts per bur. It produces a heavy crop of nuts each year with a small-sized nut containing the highest protein and carbohydrate percent of any chestnut. Nut drop begins around September 10 and continues for a seven- to eight-week period. Most of the nuts produced drop in the first five weeks of the period of nut drop from this cultivar. ‘Oz Hunter’ is a medium-sized tree that has an elliptic-shaped canopy with high upright to spreading and diffuse lateral branches. This ten-year-old cultivar is 7.92 meters tall with a canopy covering an area 21.22 square meters. Its heavy nut crop occurs from early September through mid-November, providing the highest protein and carbohydrate nut crop of any chestnut for people and wildlife.
Show the legal claimThe single numbered claim as granted — the legal text that defines what this patent covers.
I claim: 1. A new and distinct variety of Ozark chestnut tree named ‘Oz Hunter’, substantially as illustrated and described herein.
Read the full patent: US Plant Patent PP33246 in full — the complete specification, every figure, and the file history.