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South Glastonbury, CT, United States of America

David L Mathieu

Average Co-Inventor Count = 2.00

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 = 24

David L Mathieu ↔ James Sener (2 patents)David L MathieuDavid L Mathieu (2 patents)James SenerJames Sener (59 patents)
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Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Pentel of America, Ltd. (2 from 23 patents)


2 patents:

1. D486857 - Writing instrument

2. D486182 - Grip for a writing instrument

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as of
12/9/2025
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