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Le Tignet, France

Robert B Harkness

Average Co-Inventor Count = 1.33

ph-index = 1

The patent ph-index is calculated by counting the number of publications for which an author has been cited by other authors at least that same number of times.

Forward Citations = 0

Robert B Harkness ↔ Philip A Harkness (1 patent)Robert B HarknessRobert B Harkness (2 patents)Philip A HarknessPhilip A Harkness (1 patent)
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Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Jackson & Perkins Wholesale, Inc. (2 from 122 patents)


2 patents:

1. PP18558 - Floribunda rose plant named 'HARgrace'

2. PP13184 - Floribunda rose plant named 'HARbadge'

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12/18/2025
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