Growing community of inventors

Albany, NY, United States of America

John C Lawrenson

Average Co-Inventor Count = 3.00

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 = 51

John C Lawrenson ↔ Mark Philip D'Evelyn (1 patent)John C Lawrenson ↔ Joseph A Kapp (1 patent)John C LawrensonJohn C Lawrenson (1 patent)Mark Philip D'EvelynMark Philip D'Evelyn (115 patents)Joseph A KappJoseph A Kapp (3 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Soraa, Inc. (1 from 204 patents)

2. Elmhurst Research, Inc. (1 from 2 patents)


1 patent:

1. 8435347 - High pressure apparatus with stackable rings

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as of
1/9/2026
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