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Overland Park, KS, United States of America

Charles E Lumbirt

Average Co-Inventor Count = 5.00

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 = 7

Charles E LumbirtRobert J Morrill (3 patents)Charles E LumbirtJeffrey Michael Sweeney (3 patents)Charles E LumbirtKelsyn Donel Rooks (3 patents)Charles E LumbirtMichael C Robinson (3 patents)Charles E LumbirtCharles E Lumbirt (3 patents)Robert J MorrillRobert J Morrill (111 patents)Jeffrey Michael SweeneyJeffrey Michael Sweeney (56 patents)Kelsyn Donel RooksKelsyn Donel Rooks (23 patents)Michael C RobinsonMichael C Robinson (13 patents)
..
Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Centurylink Intellectual Property LLC (2 from 1,000 patents)

2. Embarq Holdings Company, LLC (1 from 149 patents)


3 patents:

1. 9014764 - System and method for selecting ringtones

2. 8478355 - System and method for playing a ringtone on a communication device

3. 8145278 - System and method for ringtone shuffle

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as of
12/26/2025
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