US Plant Patent PP16158
Birthday Cake
×Heucherella plant named ‘Birthday Cake’
PUBLIC DOMAIN
Patent expired October 23, 2024. This plant is in the public domain — anyone may propagate and sell it.
Twenty years from the filing date would end on June 18, 2024. This patent earned 127 days of term adjustment for delay at the Patent Office, which is why it runs longer.

The record
- Patent number
- PP16158
- Filed
- June 18, 2004
- Granted
- December 13, 2005
- Expires
- October 23, 2024
- Assignee
- TERRA NOVA NURSERIES INC
- Inventor
- GOSSETT GARY J
Abstract
A new and distinct cultivar of × Heucherella plant characterized by its mounding habit, chocolate colored, cut and ruffled leaves, and creamy flowers in candle-like spikes.
Show the legal claimThe single numbered claim as granted — the legal text that defines what this patent covers.
1. A new and distinct cultivar of × Heucherella plant as herein illustrated and described.
Read the full patent: US Plant Patent PP16158 in full — the complete specification, every figure, and the file history.