Growing community of inventors

Westborough, MA, United States of America

Steven Callahan

Average Co-Inventor Count = 7.00

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 = 5

Steven Callahan ↔ David G Honan (1 patent)Steven Callahan ↔ Mark A Nichols (1 patent)Steven Callahan ↔ Roger R Fontaine (1 patent)Steven Callahan ↔ Shane Yellin (1 patent)Steven Callahan ↔ Isaac Haverlick (1 patent)Steven Callahan ↔ William Tyler Fitzsimmons (1 patent)Steven CallahanSteven Callahan (1 patent)David G HonanDavid G Honan (35 patents)Mark A NicholsMark A Nichols (10 patents)Roger R FontaineRoger R Fontaine (4 patents)Shane YellinShane Yellin (3 patents)Isaac HaverlickIsaac Haverlick (2 patents)William Tyler FitzsimmonsWilliam Tyler Fitzsimmons (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Perimeter Brand Packaging, LLC (1 from 4 patents)


1 patent:

1. D766734 - Flexible pouch with internal structure

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as of
12/6/2025
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