Growing community of inventors

Pinole, CA, United States of America

Robert F Johnson

Average Co-Inventor Count = 1.50

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 = 44

Robert F JohnsonGregory N Colvin (2 patents)Robert F JohnsonLeonard L Ervin (2 patents)Robert F JohnsonJamie Moore (1 patent)Robert F JohnsonHomer L Cole (1 patent)Robert F JohnsonRobert F Johnson (6 patents)Gregory N ColvinGregory N Colvin (12 patents)Leonard L ErvinLeonard L Ervin (3 patents)Jamie MooreJamie Moore (2 patents)Homer L ColeHomer L Cole (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Other (4 from 832,812 patents)

2. Howmet Corporation (2 from 98 patents)


6 patents:

1. 11067221 - Hand hygiene system and method of use

2. 9564071 - Portable marker device

3. 9165488 - Support device for a post

4. 6719484 - Marker support

5. 5443111 - Permanent mold for casting reactive melt

6. 5287910 - Permanent mold casting of reactive melt

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idiyas.com
as of
12/19/2025
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