Bourgbarre, France

Louis C Guillou

This inventor holds 19 USPTO granted patents. Top assignees: Etablissement Public De Diffusion Dit 'Telediffusion De France', France Telecom, L'etat Francais, Represente Par Le Secretaire D'etat Aux Poste Et. Active years: 1982-2010.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Louis C Guillou. Retrieved from https://idiyas.com/inventor/louis-c-guillou

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


% Patents Active = 94.7

Average Co-Inventor Count = 1.9

ph-index = 12

Forward Citations = 1,415(Granted Patents)


Location History:

  • Saint Erblon, FR (1982)
  • Bourgbarre-Saint Erblon, FR (1982)
  • St. Erblon, FR (1985)
  • Bougbarre, FR (1988)
  • Rennes, FR (1992 - 1993)
  • Bourgbare, FR (1998)
  • Paris, FR (2008)
  • Bourgbarre, FR (1982 - 2010)

Company Filing History:

goldMedal4 out of 35 
 
Etablissement Public De Diffusion Dit 'Telediffusion De France'
 patents
silverMedal4 out of 1,156 
 
France Telecom
 patents
bronzeMedal3 out of 3 
 
L'etat Francais, Represente Par Le Secretaire D'etat Aux Poste Et
 patents
4. 3 out of 14,087 
 
U.S. Philips Corporation
 patents
5. 2 out of 2 
 
Math Rizk
 patents
6. 2 out of 29 
 
Tdf
 patents
7. 2 out of 80 
 
Telediffusion De France
 patents
8. 2 out of 13 
 
Telediffusion De France S.a.
 patents
9. 1 out of 20 
 
Cii Honeywell Bull
 patents
10. 1 out of 5 
 
Establissement Public De Diffusion Dit 'Telediffusion De France'
 patents
11. 1 out of 1 
 
Etablissement Public De Diffusion De France
 patent
12. 1 out of 132 
 
Etat Francais
 patents
13. 1 out of 5 
 
Etat Francais Represente Par Le Ministere Des Postes, Des
 patents
14. 1 out of 1 
 
Etat Francais Represente Par Le Ministre Des P.t.t. (c.n.e.t.)
 patent
15. 1 out of 4 
 
France Telcom
 patents
16. 1 out of 14 
 
France Telecom Establissement Autonome De Droit Public
 patents
17. 1 out of 13 
 
L'etat Francais Represente Par Le Ministre Des Postes, Des
 patents
18. 4 out of 834,513 
Other
 patents
where one patent can have more than one assignee

Years Active: 1982-2010

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19 patents (USPTO):Explore Patents

Title: Innovations of Louis C. Guillou: A Pioneer in Cryptographic Methods

Introduction: Louis C. Guillou, based in Bourgbarre-Saint Erblon, France, is a notable inventor with an impressive portfolio of 19 patents. His work primarily revolves around cryptographic techniques that enhance security in digital communications.

Latest Patents: Among Louis C. Guillou's latest inventions is a groundbreaking method of cryptographic authentication utilizing ephemeral modules. This method facilitates the authentication of a personal computer by a server through a sophisticated log-on procedure that involves personal identifiers and the generation of ephemeral certificates. These certificates work together to ensure the integrity and security of communication during a session. Another significant patent includes the development of zero-knowledge proof cryptography methods and devices, which outline a system where a keyholder maintains multiple private keys while ensuring that these keys cannot be derived from public parameters without substantial computational effort.

Career Highlights: Throughout his career, Louis C. Guillou has contributed significantly to the field of cryptography. His association with reputable organizations, such as the Etablissement Public De Diffusion, known as Telediffusion De France, showcases his influence on communication technologies.

Collaborations: Louis has collaborated with esteemed colleagues in the field, including Jean-Jacques Quisquater and Jean-Luc Giachetti. These partnerships have helped push the boundaries of cryptographic research, enabling advancements that contribute to greater security measures in digital practices.

Conclusion: Louis C. Guillou's contributions to innovations in cryptography reflect his commitment to enhancing security frameworks in modern technology. As he continues to develop new methods and devices, his work plays a crucial role in safeguarding sensitive information in a digital world. His patents stand as a testament to his ingenuity and the impact of his collaborations within the realm of cryptography.

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]
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