Rio de Janeiro, Brazil

Paulo Sergio Freire

This inventor holds 4 USPTO granted patents and 1 published patent application. Top assignee: Petroleo Brasileiro S.a. - Petrobras. Active years: 2009-2024.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Paulo Sergio Freire. Retrieved from https://idiyas.com/inventor/paulo-sergio-freire

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

USPTO Granted Patents = 4 

% Patents Active = 100.0

Average Co-Inventor Count = 5.5

ph-index = 1

Forward Citations = 25(Granted Patents)


Company Filing History:


Years Active: 2009-2024

Loading Chart...
4 patents (USPTO):Explore Patents

Title: Innovations by Paulo Sergio Freire: A Focused Approach to Catalytic Processes

Introduction

Paulo Sergio Freire is a prominent inventor based in Rio de Janeiro, Brazil. With a total of four patents, he has made significant contributions to the field of engineering, particularly in the area of fluid catalytic cracking (FCC) units. His inventive insights have been essential in enhancing the efficiency and functionality of industrial processes involving fluid dynamics.

Latest Patents

Freire's latest patents highlight his innovative spirit and technical expertise. His first patent features a **telescopic joint**, designed to connect two pipes in a separating vessel of a fluid catalytic cracking unit. This joint incorporates a sliding ring with a specific L profile, allowing for effective coupling that simplifies maintenance and operation.

Another notable patent is a **system and process for the separation of suspensions of spent catalysts and hydrocarbons** in an FCC unit. This invention introduces a unique arrangement of multiple ascending flow reaction tubes and a separator vessel, equipped with inclined outer sections and a vertical section designed for efficient catalyst drainage. Additionally, it includes a dual set of cyclones that enhance the separation efficiency of the process.

Career Highlights

Throughout his career, Freire has contributed to several projects and innovations while working at **Petroleo Brasileiro S.A.** (Petrobras). This leading company in the oil and gas sector has provided a platform for Freire to apply his inventive methodologies and drive advancements in industrial practices.

Collaborations

Freire has collaborated with esteemed colleagues such as Nelson Patricio Junior and Wilson Kenzo Huziwara. Their combined efforts have resulted in innovative solutions tailored to the complex challenges faced in the catalytic processing industry.

Conclusion

Paulo Sergio Freire stands out as an accomplished inventor, shaping the future of fluid catalytic cracking technologies through his patents and collaborative projects. His work not only advances industrial efficiency but also showcases the critical role of innovative thinkers in shaping engineering practices globally. With a foundation built on collaboration and technical expertise, Freire continues to influence the landscape of catalytic processes.

Profile summary based on public USPTO records.
Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
Loading…