US Plant Patent PP15415
Kronos
Euphorbia milii plant named ‘Kronos’
PUBLIC DOMAIN
Patent expired March 15, 2024. This plant is in the public domain — anyone may propagate and sell it.
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
- PP15415
- Filed
- March 15, 2004
- Granted
- December 7, 2004
- Expires
- March 15, 2024
- Assignee
- GARTNERIET HJORTEBJERG I S
- Inventor
- THOMSEN STEEN
Abstract
A new distinct cultivar of Euphorbia milii plant named ‘Kronos’, characterized by its light red to red-purple floral bract color from 50C to 58B; very low and bushy plant form; vigorous growth habit; larger, green flowers on thick gray-brown peduncles, RHS 199B.
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 cultivar of Euphorbia milii plant named ‘Kronos’, as illustrated and described herein.
Read the full patent: US Plant Patent PP15415 in full — the complete specification, every figure, and the file history.