Growing community of inventors

Rio de Janeiro, Brazil

Roberto Ricardo Rangel

Average Co-Inventor Count = 5.00

ph-index = 1

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 = 0

Roberto Ricardo Rangel ↔ Jose Antonio Vidal Vieira (1 patent)Roberto Ricardo Rangel ↔ Vitor Loureiro Ximenes (1 patent)Roberto Ricardo Rangel ↔ Marcio De Figueiredo Portilho (1 patent)Roberto Ricardo Rangel ↔ Carolina Ludwig Quintani (1 patent)Roberto Ricardo RangelRoberto Ricardo Rangel (1 patent)Jose Antonio Vidal VieiraJose Antonio Vidal Vieira (6 patents)Vitor Loureiro XimenesVitor Loureiro Ximenes (6 patents)Marcio De Figueiredo PortilhoMarcio De Figueiredo Portilho (4 patents)Carolina Ludwig QuintaniCarolina Ludwig Quintani (1 patent)
..
Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Petroleo Brasileiro S.a. - Petrobras (1 from 433 patents)


1 patent:

1. 10266781 - Process for purifying biodiesel

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as of
12/16/2025
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