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Vernon Hills, IL, United States of America

John F Hetzel

Average Co-Inventor Count = 3.00

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 = 5

John F HetzelRyan P Lundberg (2 patents)John F HetzelRich Glogovsky (2 patents)John F HetzelJohn F Hetzel (2 patents)Ryan P LundbergRyan P Lundberg (16 patents)Rich GlogovskyRich Glogovsky (2 patents)
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Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Alpha Guardian (2 from 4 patents)


2 patents:

1. 10655375 - Security safe hinge

2. D862196 - Security safety hinge

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1/16/2026
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