Growing community of inventors

Issaquah, WA, United States of America

John Hamaker

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 = 15

John HamakerQin Cai (1 patent)John HamakerJohn Hamaker (1 patent)Qin CaiQin Cai (9 patents)
..
Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Microsoft Technology Licensing, LLC (1 from 54,719 patents)


1 patent:

1. 7844456 - Grammar confusability metric for speech recognition

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as of
12/29/2025
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