Skip to content
The Patent Garden

US Plant Patent PP18144

Silver Shadow

Peperomia plant named ‘Silver Shadow’

PUBLIC DOMAIN

Patent expired December 3, 2025. This plant is in the public domain — anyone may propagate and sell it.

Twenty years from the filing date would end on November 25, 2025. This patent earned 8 days of term adjustment for delay at the Patent Office, which is why it runs longer.

Figure 1 of US plant patent PP18144, the photograph of Silver Shadow printed in the patent.
Figure 1 from US Plant Patent PP18144, reproduced as printed. Photographs in a plant patent are taken by the applicant. Reproduction of the patent document is permitted; the image is shown whole and uncropped for that reason.

The record

Patent number
PP18144
Filed
November 25, 2005
Granted
October 23, 2007
Expires
December 3, 2025
Inventor
SCHOENMAKERS KEES

Abstract

A new cultivar of Peperomia plant named ‘Silver Shadow’ that is characterized by a broad upright growth habit and white and green leaves.

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 Peperomia plant named ‘Silver Shadow’ as described and illustrated.

Read the full patent: US Plant Patent PP18144 in full — the complete specification, every figure, and the file history.