This inventor holds 10 USPTO granted patents and 1 published patent application and 4 EPO patents. Top assignees: Lg Electronics Inc., University of São Paulo. Active years: 2020-2026.
Location History:
- Embu das Artes, BR (2022)
- Sao Paulo, BR (2023)
- Santa Clara, CA (US) (2023)
- São Paulo, BR (2020 - 2024)
Company Filing History:

Years Active: 2020-2026
Title: Jefferson E Ricardini: Innovator in Cryptographic Systems
Introduction
Jefferson E Ricardini is a notable inventor based in São Paulo, Brazil. He has made significant contributions to the field of cryptography, holding a total of nine patents. His work focuses on enhancing security measures in various systems, particularly in the realm of digital certificates and security credential management.
Latest Patents
Among his latest patents is a system designed to counter co-existence attacks. This invention provides methods to prevent or counteract such attacks within a Security Credential Management System (SCMS) that supports both regular butterfly key (RBK) and unified butterfly key (UBK) protocols. Additionally, Ricardini has developed cryptographic methods that utilize activation codes for digital certificate revocation. This innovative approach blocks the activation of a digital certificate by withholding an activation code from the user, ensuring user privacy even in cases of collusion among multiple entities.
Career Highlights
Ricardini has worked with prominent organizations, including LG Electronics Inc. and the University of São Paulo. His experience in these institutions has allowed him to refine his expertise in cryptographic systems and security protocols.
Collaborations
Throughout his career, Ricardini has collaborated with notable colleagues such as Marcos Antonio Simplicio, Jr. and Eduardo Lopes Cominetti. These partnerships have contributed to the advancement of his research and innovations in the field.
Conclusion
Jefferson E Ricardini stands out as a significant figure in the development of cryptographic systems and security measures. His innovative patents and collaborations reflect his commitment to enhancing digital security.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile