Growing community of inventors

Rio de Janeiro, Brazil

Sergio S Ribeiro

Average Co-Inventor Count = 2.00

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 = 1

Sergio S RibeiroFlávio Henrique Marchesini (1 patent)Sergio S RibeiroFlavio H Marchesini (1 patent)Sergio S RibeiroFlavio H Marchesini (0 patent)Sergio S RibeiroSergio S Ribeiro (1 patent)Flávio Henrique MarchesiniFlávio Henrique Marchesini (2 patents)Flavio H MarchesiniFlavio H Marchesini (3 patents)Flavio H MarchesiniFlavio H Marchesini (0 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Halliburton Energy Services, Inc. (1 from 11,817 patents)

2. Petrobras (1 from 2 patents)

3. Petroleo Brasileiro S.a. - Petrobras (441 patents)


1 patent:

1. 9939419 - Modular sensed annular well apparatus for cement testing

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1/8/2026
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