Growing community of inventors

Columbus, OH, United States of America

John A Ingwersen

Average Co-Inventor Count = 2.00

ph-index = 4

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 = 102

John A IngwersenRobert G Reed (3 patents)John A IngwersenThomas Montague (2 patents)John A IngwersenThomas L Montague (1 patent)John A IngwersenJohn A Ingwersen (4 patents)Robert G ReedRobert G Reed (10 patents)Thomas MontagueThomas Montague (6 patents)Thomas L MontagueThomas L Montague (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Other (3 from 832,966 patents)


4 patents:

1. 5490653 - Cup holder accessory

2. 5260546 - Gun for gas metal arc welding

3. D334517 - Welding gun

4. 5132513 - Gun for gas metal arc welding

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as of
1/18/2026
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