Growing community of inventors

Concord, MA, United States of America

John A Gunnarson

Average Co-Inventor Count = 4.00

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 = 15

John A Gunnarson ↔ Albert D Ehrenfried (2 patents)John A Gunnarson ↔ William E Pierce (2 patents)John A Gunnarson ↔ Edwin P Dews (1 patent)John A Gunnarson ↔ Thomas C Thorstensen (1 patent)John A GunnarsonJohn A Gunnarson (2 patents)Albert D EhrenfriedAlbert D Ehrenfried (3 patents)William E PierceWilliam E Pierce (2 patents)Edwin P DewsEdwin P Dews (1 patent)Thomas C ThorstensenThomas C Thorstensen (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Metritape, Inc. (2 from 4 patents)


2 patents:

1. 4967594 - Sheathing and venting of resistance-tape level sensor

2. 4942764 - Mounting head for a resistance-tape level sensor

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12/13/2025
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