Growing community of inventors

Wilkes-Barre, PA, United States of America

John J Chapko

Average Co-Inventor Count = 2.90

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 = 64

John J ChapkoRobert J Cohn (2 patents)John J ChapkoJohn H Welsch (2 patents)John J ChapkoRobert J Carver (2 patents)John J ChapkoDaniel C Dubin (1 patent)John J ChapkoJohn J Chapko (3 patents)Robert J CohnRobert J Cohn (62 patents)John H WelschJohn H Welsch (37 patents)Robert J CarverRobert J Carver (3 patents)Daniel C DubinDaniel C Dubin (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Intermetro Industries Corporation (2 from 83 patents)

2. Metropolitan Wire Corporation (1 from 25 patents)


3 patents:

1. 4991725 - Compact storage system

2. 4557511 - Latch assembly for holding an object in either of two positions

3. 4509805 - Enclosed shelving

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as of
12/10/2025
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