Growing community of inventors

Winchester, MA, United States of America

Johnny Chang

Average Co-Inventor Count = 2.00

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

Johnny ChangMan Hei Raymond Yim (1 patent)Johnny ChangJohnny Chang (1 patent)Man Hei Raymond YimMan Hei Raymond Yim (3 patents)
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Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Fmr Corp. (1 from 427 patents)


1 patent:

1. 11514523 - AI-based real-time prediction engine apparatuses, methods and systems

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