Growing community of inventors

Akron, OH, United States of America

John A Keitch

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 = 9

John A Keitch ↔ Richard A Lacjak (2 patents)John A KeitchJohn A Keitch (2 patents)Richard A LacjakRichard A Lacjak (2 patents)
..
Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Foseco Trading A.g. (2 from 43 patents)


2 patents:

1. D270093 - Tundish liner board

2. D262311 - Tundish lining

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as of
1/16/2026
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