Growing community of inventors

Evansville, IN, United States of America

Charles E Luker

Average Co-Inventor Count = 1.60

ph-index = 3

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 = 47

Charles E LukerMark N Russell (2 patents)Charles E LukerPeter P Gach (1 patent)Charles E LukerCharles E Luker (4 patents)Mark N RussellMark N Russell (6 patents)Peter P GachPeter P Gach (30 patents)
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Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Berry Plastics Corporation (2 from 277 patents)

2. Sunbeam Plastics Corporation (2 from 107 patents)


4 patents:

1. 9994379 - Container closure

2. 9359117 - Container closure

3. 4353474 - Load bearing closure

4. 4288000 - Child-resistant lid for a pail

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as of
12/29/2025
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