Growing community of inventors

Amesbury, MA, United States of America

Roy Sample

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 = 9

Roy SampleDaniel A Fratello (2 patents)Roy SampleRoy Sample (2 patents)Daniel A FratelloDaniel A Fratello (10 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Mark Vii Equipment, Inc. (2 from 14 patents)


2 patents:

1. 6283135 - Vehicle washing system with unique nozzle arrangement

2. 6095438 - Vehicle washing system

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as of
1/11/2026
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