Growing community of inventors

New York, NY, United States of America

Ching-nu Chang

Average Co-Inventor Count = 4.00

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 = 14

Ching-nu ChangAnthony Mavromatis (3 patents)Ching-nu ChangTerrence Fischer (3 patents)Ching-nu ChangLee C Chau (3 patents)Ching-nu ChangChing-nu Chang (3 patents)Anthony MavromatisAnthony Mavromatis (15 patents)Terrence FischerTerrence Fischer (13 patents)Lee C ChauLee C Chau (11 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. American Express Travel Related Services Company, Inc. (3 from 1,453 patents)


3 patents:

1. 10909608 - Merchant recommendations associated with a persona

2. 10192256 - Determining merchant recommendations

3. 9361627 - Systems and methods determining a merchant persona

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as of
1/15/2026
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