Growing community of inventors

Warren, OH, United States of America

Marilyn A Burnfield

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 = 11

Marilyn A BurnfieldMarc Anthony Crawford (1 patent)Marilyn A BurnfieldMarilyn A Burnfield (1 patent)Marc Anthony CrawfordMarc Anthony Crawford (5 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. 8444201 - Pull out, fold down tailgate step having fold up handle

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12/21/2025
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