Growing community of inventors

Taipei, Taiwan

Harold Chen

Average Co-Inventor Count = 1.80

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 = 40

Harold ChenNoah L Anglin (1 patent)Harold ChenJames S Arakaki (1 patent)Harold ChenStanley J Hludzinski (1 patent)Harold ChenDavid Crawford (1 patent)Harold ChenHarold Chen (3 patents)Noah L AnglinNoah L Anglin (22 patents)James S ArakakiJames S Arakaki (10 patents)Stanley J HludzinskiStanley J Hludzinski (7 patents)David CrawfordDavid Crawford (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Verifone Gmbh (3 from 213 patents)


3 patents:

1. 5256867 - Card reader apparatus

2. D334924 - Memory cartridge for a point of transaction terminal

3. 5180905 - Card reader apparatus with replaceable card guide

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as of
12/20/2025
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