Growing community of inventors

Merseyside, United Kingdom

Bryan Duffin

Average Co-Inventor Count = 1.50

ph-index = 3

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 = 27

Bryan DuffinZia Haq (2 patents)Bryan DuffinBryan Duffin (3 patents)Zia HaqZia Haq (14 patents)
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Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Lever Brothers Company (3 from 1,003 patents)


3 patents:

1. 4964873 - Fabric conditioning method

2. 4950412 - Fabric conditioning composition

3. 4075110 - Fabric treatment compositions

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as of
12/18/2025
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