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:
Jun. 17, 2025

Filed:

Oct. 31, 2022
Applicant:

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

Inventors:

Yi Luo, Redmond, WA (US);

Weigsheng Li, Redmond, WA (US);

Sharada Shirish Acharya, Seattle, WA (US);

Mainak Sen, Palo Alto, CA (US);

Ravi Kiran Reddy Poluri, Redmond, WA (US);

Christian Rudnick, Seattle, WA (US);

Assignee:
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G06N 20/00 (2019.01); H04L 51/42 (2022.01);
U.S. Cl.
CPC ...
G06N 20/00 (2019.01); H04L 51/42 (2022.05);
Abstract

Emails or other communications are labeled with a category label such as 'spam' or “good” without using confidential or Personally Identifiable Information (PII). The category label is based on features of the emails such as metadata that do not contain PII. Graphs of inferred relationships between email features and category labels are used to assign labels to emails and to features of the emails. The labeled emails are used as a training dataset for training a machine learning model (“MLM”). The MLM identifies unwanted emails such as spam, bulk email, phishing email, and emails that contain malware.


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