US Plant Patent PP23156
Henry Blanke
Lemna minor plant named ‘Henry Blanke’
UNDER PATENT
Still under patent. Protection ends June 7, 2030.
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
- PP23156
- Filed
- June 7, 2010
- Granted
- October 30, 2012
- Expires
- June 7, 2030
- Assignee
- ROGMANS MARIA, WILHELM HERMANN-JOSEF
- Inventor
- ROGMANS MARIA; WILHELM HERMANN-JOSEF
Abstract
A new Lemna minor plant named ‘Henry Blanke’ is provided. The plant is particularly well suited to serve as a biomass renewable energy source. The plant is small in stature but unlike Dwarf Duckweed possesses short roots which well enable the absorption of nutrients present in water. Such short roots also enable the ready separation of adjoining plants. Strong green leaves are displayed. The plant is well able to maintain active biosynthesis under low light conditions. The plant is particularly well suited to metabolize carbon dioxide from emissions with a simultaneous increase of mass.
Show the legal claimThe single numbered claim as granted — the legal text that defines what this patent covers.
1. A new and distinct Lemna minor plant, substantially as illustrated and described.
Read the full patent: US Plant Patent PP23156 in full — the complete specification, every figure, and the file history.