Growing community of inventors

Kent, United Kingdom

Marcus John Willis

Average Co-Inventor Count = 1.25

ph-index = 2

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 = 52

Marcus John WillisAlex Massey (2 patents)Marcus John WillisMarcus John Willis (5 patents)Alex MasseyAlex Massey (2 patents)
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Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Asahi Seiko Company Ltd. (5 from 123 patents)

2. Asahi Seiko., Ltd. (1 patent)


5 patents:

1. 10954061 - Card cassette device and card dispensing apparatus using the same

2. 10121308 - Card dispenser

3. 10093475 - Card cassette device and card dispensing apparatus using the same

4. 9064362 - Disk sorting device

5. 6050448 - Card dispensing cassette

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as of
12/11/2025
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