Growing community of inventors

Hermitage, PA, United States of America

Sergio DeOliveira

Average Co-Inventor Count = 3.00

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 = 37

Sergio DeOliveira ↔ Joseph C Dangrow (1 patent)Sergio DeOliveira ↔ James J Grebinoski (1 patent)Sergio DeOliveira ↔ Pete Robinson (1 patent)Sergio DeOliveira ↔ R Scott Patton (1 patent)Sergio DeOliveiraSergio DeOliveira (2 patents)Joseph C DangrowJoseph C Dangrow (25 patents)James J GrebinoskiJames J Grebinoski (11 patents)Pete RobinsonPete Robinson (2 patents)R Scott PattonR Scott Patton (2 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Werner Co. (2 from 215 patents)


2 patents:

1. D584422 - Ladder leveler stile

2. D530025 - Ladder top

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as of
12/16/2025
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