US Plant Patent PP18819
White Marble
Caladium plant named ‘White Marble’
UNDER PATENT
Still under patent. Protection ends December 29, 2026.
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
- PP18819
- Filed
- December 29, 2006
- Granted
- May 20, 2008
- Expires
- December 29, 2026
- Assignee
- HARTMAN ROBERT DALE
- Inventor
- HARTMAN ROBERT DALE
Abstract
A new and distinct cultivar of Caladium plant named ‘White Marble’, characterized by its upright and outwardly arching plant habit; vigorous growth habit; undulate strap-like leaves; and green and white-colored leaves.
Show the legal claimThe single numbered claim as granted — the legal text that defines what this patent covers.
1. A new and distinct Caladium plant named ‘White Marble’ as illustrated and described.
Read the full patent: US Plant Patent PP18819 in full — the complete specification, every figure, and the file history.