US Plant Patent PP16422
Mara
Spathiphyllum plant named ‘Mara’
PUBLIC DOMAIN
Patent expired July 17, 2025. This plant is in the public domain — anyone may propagate and sell it.
Twenty years from the filing date would end on August 12, 2024. This patent earned 339 days of term adjustment for delay at the Patent Office, which is why it runs longer.

The record
- Patent number
- PP16422
- Filed
- August 12, 2004
- Granted
- April 11, 2006
- Expires
- July 17, 2025
- Assignee
- CORNELIS DANIEL
- Inventor
- CORNELIS DANIEL
Abstract
A new cultivar of Spathiphyllum plant named ‘Mara’ that is characterized by upright strong leaves with undulate margins, minimal shoots and consistent flowering.
Show the legal claimThe single numbered claim as granted — the legal text that defines what this patent covers.
1. A new and distinct variety of Spathiphyllum plant named ‘Mara’ as described and illustrated.
Read the full patent: US Plant Patent PP16422 in full — the complete specification, every figure, and the file history.