Growing community of inventors

Manteno, IL, United States of America

Chad E Heflin

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 = 13

Chad E Heflin ↔ George Siragusa (1 patent)Chad E HeflinChad E Heflin (1 patent)George SiragusaGeorge Siragusa (10 patents)
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Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Illinois Tool Works Inc. (1 from 7,597 patents)


1 patent:

1. 6652206 - Self-locking rivet fastener

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1/9/2026
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