Skip to content
The Patent Garden

US Plant Patent PP6489

Philodendron plant

PUBLIC DOMAIN

Patent expired April 6, 2007. 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
PP6489
Filed
April 6, 1987
Granted
December 27, 1988
Expires
April 6, 2007
Inventor
MILLER HOWARD N

No cultivar name of record

This patent does not name the plant. Through the 1980s and early 1990s that was still common: naming every new cultivar only became standard practice as plants began to be marketed under brand names. The grant identifies this one by its number and by a written description instead.

Nothing here is missing from our records: the patent itself states no name. Where one exists we show it, and we do not invent one.

Abstract

The disclosure hereof is of a very compact, self-heading Philodendron plant of unusual density of growth. The plant is very stocky, producing an abundance of off-shoots from the crown, leaves are emerald green and are thick and glossy, having short thick petioles.

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 variety of Philodendron plant, substantially as herein shown and described, characterized particularly as to novelty by its thick, ovate, waxy emerald green leaves, its self-heading growth habit and profuse branching from the crown, its excellent in-house growth, having the ability to withstand moderately low light, low maintenance and long periods without water, greater resistance to bacterial leaf rot than Philodendron varieties now available, and upright symmetrical growth, attaining an average height of 18" to 20" and width of 36" to 40" in approximately a year from tissue culture.

Read the full patent: US Plant Patent PP6489 in full — the complete specification, every figure, and the file history.