Growing community of inventors

Dallas, TX, United States of America

Martha A Sewell

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 = 7

Martha A SewellVirgil L Sewell (1 patent)Martha A SewellMartha A Sewell (1 patent)Virgil L SewellVirgil L Sewell (2 patents)
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Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Other (1 from 832,812 patents)


1 patent:

1. 4955557 - Handcraft yarn dispenser

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12/18/2025
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