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Sagamore Hills, OH, United States of America

Robert J Petrush

Average Co-Inventor Count = 2.00

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 = 14

Robert J PetrushJames D Cayford (1 patent)Robert J PetrushJames D Caryford (1 patent)Robert J PetrushRobert J Petrush (2 patents)James D CayfordJames D Cayford (3 patents)James D CaryfordJames D Caryford (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. 3M Innovative Properties Company (2 from 22,077 patents)


2 patents:

1. 5472559 - Surface protecting assembly and method

2. 5356503 - Masking assembly and masking method for protecting surfaces from radiant

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1/19/2026
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