The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Mar. 13, 2018

Filed:

May. 06, 2014
Applicant:

Microsoft Technology Licensing, Llc, Redmond, WA (US);

Inventors:

Frank Byrum, Seattle, WA (US);

Mayank Mehta, Redmond, WA (US);

Chandresh Jain, Sammamish, WA (US);

Ladislau Conceicao, Redmond, WA (US);

Brian Kress, Woodinville, WA (US);

Greg Gourevitch, Redmond, WA (US);

Michael Nelte, Redmond, WA (US);

Chris Barnes, Redmond, WA (US);

Assignee:
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04L 29/06 (2006.01); H04L 12/58 (2006.01);
U.S. Cl.
CPC ...
H04L 63/0807 (2013.01); H04L 51/00 (2013.01); H04L 63/0428 (2013.01); H04L 63/0435 (2013.01);
Abstract

An email security system is described that allows users within different organizations to securely send email to one another. The email security system provides a federation server on the Internet or other unsecured network accessible by each of the organizations. Each organization provides identity information to the federation server. When a sender in one organization sends a message to a recipient in another organization, the federation server provides the sender's email server with a secure token for encrypting the message to provide secure delivery over the unsecured network.


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