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Wylie, TX, United States of America

John Mannewitz

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 = 8

John MannewitzKenneth D Johnston, Jr (2 patents)John MannewitzJohn Mannewitz (2 patents)Kenneth D Johnston, JrKenneth D Johnston, Jr (4 patents)
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Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Securus Technologies, Inc. (2 from 239 patents)


2 patents:

1. 10944803 - Controlled-environment facility interactive session system

2. 10929940 - Controlled-environment facility message response system

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1/12/2026
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