Company Filing History:
2 out of 150 
1 out of 85 
1 out of 267 
Years Active: 2010-2017
Title: The Innovations of John Elwell
Introduction
John Elwell is a notable inventor based in Nottingham, GB. He has made significant contributions to the field of communication technology, holding a total of 4 patents. His work primarily focuses on methods for authenticating key information between terminals of a communication link.
Latest Patents
One of John Elwell's latest patents involves a method for authenticating key information between terminals of a communication link. This method utilizes a key management protocol to authenticate transmitted key information through at least one certificate signed by the terminals. Additionally, it incorporates at least one fingerprint of the public keys or certificate used for authentication, which is added to the useful part of a Session Initiation Protocol (SIP) message. The identity information present in the header of the SIP message is also copied into a designated region, and a signature is produced using the fingerprint, the data in the SIP header, the copied identity information, and optionally the certificate reference information. This signature is then inserted into another region of the SIP message header. Notably, the additional signature remains unaffected during transmission across various networks operated by different network providers.
Career Highlights
Throughout his career, John Elwell has worked with prominent companies such as Siemens Enterprise Communications GmbH & Co. KG and Siemens Enterprise Communications, Inc. His experience in these organizations has allowed him to develop and refine his innovative ideas in communication technology.
Collaborations
John has collaborated with several professionals in his field, including Kai Fischer and Duncan McNeillie. These collaborations have contributed to the advancement of his projects and innovations.
Conclusion
John Elwell's contributions to communication technology through his patents and collaborations highlight his role as a significant inventor in the industry. His innovative methods for authenticating key information continue to influence the field.