US Plant Patent PP34623
DRABROT
Sycamore plant named ‘DRABROT’
UNDER PATENT
Still under patent. Protection ends February 26, 2041.
Twenty years from the filing date would end on December 28, 2040. This patent earned 60 days of term adjustment for delay at the Patent Office, which is why it runs longer.

The record
- Patent number
- PP34623
- Filed
- December 28, 2020
- Granted
- October 4, 2022
- Expires
- February 26, 2041
- Assignee
- BROTZMAN TIMOTHY C, DRAVES THOMAS M
- Inventor
- BROTZMAN TIMOTHY C; DRAVES THOMAS M
Abstract
A new variety of Platanus occidentalis named ‘DRABROT’ which is characterized by a contorted, semi-weeping branch habit and dark green, disease-free leaves. In combination, these characteristics distinguish ‘DRABROT’ from all other cultivars known to the inventors.
Show the legal claimThe single numbered claim as granted — the legal text that defines what this patent covers.
The invention claimed is: 1. A new and distinct variety of Platanus occidentalis named ‘DRABROT’, substantially as described and illustrated herein.
Read the full patent: US Plant Patent PP34623 in full — the complete specification, every figure, and the file history.