US Plant Patent PP34913
ViruTherm-1
Pear tree rootstock named ‘ViruTherm-1’
UNDER PATENT
Still under patent. Protection ends March 11, 2042.
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
- PP34913
- Filed
- March 11, 2022
- Granted
- January 17, 2023
- Expires
- March 11, 2042
- Inventor
- PETRUSCHKE MICHAEL
Abstract
A new and distinct variety of pear tree rootstock tree that exhibits resistance to Candidatus Phytoplasma pyri, no suckering, and is compatible with all pear varieties.
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 pear tree rootstock plant named ‘ViruTherm-1’, as is herein illustrated and described.
Read the full patent: US Plant Patent PP34913 in full — the complete specification, every figure, and the file history.