Growing community of inventors

Tulsa, OK, United States of America

Charles B Ammann

Average Co-Inventor Count = 3.00

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 = 96

Charles B AmmannToby DeWeese (3 patents)Charles B AmmannConstance Fabian-Isaacs (2 patents)Charles B AmmannConstance Fabian-Issacs (1 patent)Charles B AmmannCharles B Ammann (3 patents)Toby DeWeeseToby DeWeese (28 patents)Constance Fabian-IsaacsConstance Fabian-Isaacs (2 patents)Constance Fabian-IssacsConstance Fabian-Issacs (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Rovi Guides, Inc. (3 from 2,118 patents)


3 patents:

1. 10154318 - Systems and methods for providing audio-based guidance

2. 9686595 - Systems and methods for providing audio-based guidance

3. 8949902 - Systems and methods for providing audio-based guidance

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as of
12/29/2025
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