Patent assignee · US · COMPANY

Proofpoint, Inc.

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207Patents
205Active
207Granted
60Portfolio score

Filing activity: May 27, 2003 → Jun 4, 2024 · 11 expiring within 5 years

Most-cited patents

PatentTitleAreaCited byStatus
US7716297B1 Message stream analysis for spam detection and filtering Electricity 71 Active
US8489689B1 Apparatus and method for obfuscation detection within a spam filtering model Physics 50 Active
US10104029B1 Email security architecture Electricity 32 Active
US10616272B2 Dynamically detecting abnormalities in otherwise legitimate emails containing uniform resource locators (URLs) Electricity 28 Active
US8112484B1 Apparatus and method for auxiliary classification for generating features for a spam filtering model Electricity 26 Active
US7461063B1 Updating logistic regression models using coherent gradient Emerging Cross-Sectional Technologies 23 Expired
US8839401B2 Malicious message detection and processing Electricity 21 Active
US9686297B2 Malicious message detection and processing Electricity 19 Active
US7461257B2 System for detecting spoofed hyperlinks Electricity 18 Expired
US9596264B2 Targeted attack protection using predictive sandboxing Electricity 17 Active
US9241009B1 Malicious message detection and processing Electricity 15 Active
US10530806B2 Methods and systems for malicious message detection and processing Electricity 15 Active
US9967278B2 Systems and methods for application security analysis Electricity 15 Active
US11158207B1 Context-aware cybersecurity training systems, apparatuses, and methods Electricity 14 Active
US10679088B1 Visual domain detection systems and methods Electricity 13 Active
US7594116B2 Mediated key exchange between source and target of communication Electricity 12 Active
US10097576B2 Systems and methods for application security analysis Electricity 11 Active
US9020887B2 Managing the status of documents in a distributed storage system Physics 10 Active
US10102372B2 Behavior profiling for malware detection Electricity 10 Active
US8290203B1 Apparatus and method for detecting images within spam Physics 10 Active
US10673814B1 Domain name classification systems and methods Electricity 10 Active
US9838391B2 Systems and methods for privately performing application security analysis Physics 10 Active
US10623435B2 Application security analysis Electricity 9 Active
US11611590B1 System and methods for reducing the cybersecurity risk of an organization by verifying compliance status of vendors, products and services Electricity 8 Active
US11640470B1 System and methods for reducing an organization's cybersecurity risk by determining the function and seniority of employees Physics 8 Active

Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.