For the Inventor, By the Inventor

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Woburn, MA, United States of America

Ov Loop, Inc.

USPTO Granted Patents = 3

Trademarks = 2

Forward Citations = 2

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4 inventors (with patents filed for the assignee):

William Wang Graylin (2 out of 13 patents)

John Maddox (2 out of 4 patents)

Richard A Smith (1 out of 30 patents)

4. Charles Douglas Yeager (1 out of 1 patent)

3 patents: Sort by Forward Citations

1. 12033157 - Systems and methods for authorizing a transaction with an unexpected cryptogram (2024-07-09),

2. 10681032 - System and method for voice authentication (2020-06-09),

3. 10560774 - Headset mode selection (2020-02-11),

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USPTO Data Jan 1 1976 - Dec 23 2025

3 Patents

#141 in Woburn, MA

#3,875 in Massachusetts

#71,950 in US

Woburn, MA, United States of America

Ov Loop, Inc.

Forward Citations = 2

4 inventors:

William Wang Graylin (2 out of 13 patents)

John Maddox (2 out of 4 patents)

Richard A Smith (1 out of 30 patents)

4. Charles Douglas Yeager (1 out of 1 patent)

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