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Grayslake, IL, United States of America

Robert Simpson

Average Co-Inventor Count = 3.13

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 = 101

Robert SimpsonValentin Hierzer (6 patents)Robert SimpsonRick Gaiser (4 patents)Robert SimpsonRobert Brown (1 patent)Robert SimpsonGene Dorsch (1 patent)Robert SimpsonRicky G Gaiser (1 patent)Robert SimpsonRobert Simpson (6 patents)Valentin HierzerValentin Hierzer (43 patents)Rick GaiserRick Gaiser (11 patents)Robert BrownRobert Brown (2 patents)Gene DorschGene Dorsch (1 patent)Ricky G GaiserRicky G Gaiser (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Crown Cork & Seal Technologies Corporation (5 from 231 patents)

2. Zeller Plastik Gmbh (1 from 17 patents)


6 patents:

1. 6910607 - Cover for dispensing closure with pressure actuated valve

2. 6578744 - Watertight tube closure

3. D472144 - Closure for container

4. 6089418 - Dispensing closure with pressure actuated valve

5. 6056161 - Push-pull dispenser

6. D398851 - Dispensing closure with pressure actuated valve

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as of
1/16/2026
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