Growing community of inventors

Wilmington, MA, United States of America

John O De Mars

Average Co-Inventor Count = 1.60

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 = 37

John O De Mars ↔ Stephen P Belko (1 patent)John O De Mars ↔ Kevin W Grogan (1 patent)John O De Mars ↔ Eliot Kay (1 patent)John O De MarsJohn O De Mars (2 patents)Stephen P BelkoStephen P Belko (12 patents)Kevin W GroganKevin W Grogan (1 patent)Eliot KayEliot Kay (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. W. R. Grace Co.-conn. (2 from 1,391 patents)


2 patents:

1. 5320851 - Packaging and dispensing system for fluid and semi-fluid cement

2. 5099688 - Thermographic method for determining the volume of concrete in a mixing

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12/30/2025
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