Farum, Denmark

Carsten D Frehr

This inventor holds 22 USPTO granted patents and 3 published patent applications, primarily in Cryptographic Security. Top assignee: International Business Machines Corporation. Active years: 2010-2016.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Carsten D Frehr. Retrieved from https://idiyas.com/inventor/carsten-d-frehr

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

USPTO Granted Patents = 22 

% Patents Active = 13.6

Average Co-Inventor Count = 5.2

ph-index = 3

Forward Citations = 35(Granted Patents)


Location History:

  • Farum, DE (2014)
  • Farum, DE (US) (2014)
  • Farum, DK (2010 - 2016)

Company Filing History:


Years Active: 2010-2016

Loading Chart...
Areas of Expertise:
Key Management
Cryptographic Keys
PIN Security
Key Usage Policies
Control Vector Protection
Data Parsing
Key Control Information
Secure Key Creation
ATM Security
Flexible Security Functions
22 patents (USPTO):Explore Patents

Title: Carsten D. Frehr: Innovator in Secure Key Management

Introduction: Carsten D. Frehr is a distinguished inventor based in Farum, Denmark, known for his contributions to the field of computer security with a total of 22 patents to his name. His innovative work primarily focuses on secure key management, an essential aspect of modern cybersecurity that ensures the integrity and confidentiality of sensitive information.

Latest Patents: Among his latest patents, Frehr has developed methods for implementing secure key management systems. One embodiment outlines a method where information related to the creation of a key is populated within a dedicated section, along with details about how the key was acquired by a secure module. This section is then bound to the key, ensuring it is encrypted. Another recent patent focuses on computer security, wherein a token is created that includes a payload section filled with key material. This method emphasizes a wrapping method to securely bind key control information to the key material, ensuring that the data structure remains independent of the chosen wrapping method.

Career Highlights: Carsten D. Frehr has made significant strides in his career at the International Business Machines Corporation (IBM), a leading company in technology and innovation. His expertise and inventive spirit have resulted in numerous advancements that bolster cybersecurity measures across various applications. His contributions have aided organizations in enhancing their secure data management practices.

Collaborations: Throughout his career, Frehr has collaborated with esteemed colleagues such as Todd Weston Arnold and Richard Victor Kisley. Their collective efforts in the field have led to the development of effective solutions for key management and the fortification of cybersecurity protocols.

Conclusion: Carsten D. Frehr stands out as a notable inventor in the realm of secure key management. His 22 patents reflect his commitment to advancing technology and ensuring safer digital environments. As cybersecurity continues to evolve, Frehr’s work at IBM remains pivotal in addressing the challenges of securing sensitive information.

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…