US Plant Patent PP23757
BC6.1
Hydrangea plant named ‘BC6.1’
UNDER PATENT
Still under patent. Protection ends September 10, 2031.
Twenty years from the filing date would end on June 22, 2031. This patent earned 80 days of term adjustment for delay at the Patent Office, which is why it runs longer.

The record
- Patent number
- PP23757
- Filed
- June 22, 2011
- Granted
- July 23, 2013
- Expires
- September 10, 2031
- Assignee
- BAY CITY FLOWER CO, HIGAKI HARRISON M
- Inventor
- HIGAKI HARRISON M
Abstract
A new and distinct cultivar of Hydrangea macrophylla (Thunb.) named ‘BC6.1’ originated as a controlled cross between unpatented varieties. The cultivar ‘BC6.1’ can be blue or red depending on the acidity of the soil and the presence of aluminum. The variety ‘BC6.1’ has large attractive inflorescences with large sepalous florets, distinct sepal pigmentation and good commercial characteristics. When grown in the presence of aluminum, the under side of the sepals is R.H.S. 86 A (violet group), the underside of the sepals is R.H.S. 88 D (violet group).
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 Hydrangea macrophylla plant named ‘BC6.1’ substantially as herein shown and described.
Read the full patent: US Plant Patent PP23757 in full — the complete specification, every figure, and the file history.