Inventor · Framingham, MA, US

Clifford E. Kahn

22Patents
10h-index
27Co-inventors
75Inventor score

Filing activity: Feb 13, 1990 → Nov 16, 2022

Most-cited inventions

PatentTitleAreaCited byStatus
US7185192B1 Methods and apparatus for controlling access to a resource Emerging Cross-Sectional Technologies 422 Expired
US8312540B1 System for slowing password attacks Electricity 125 Active
US7032186B1 Methods and apparatus for representing resources in a computing system environment Emerging Cross-Sectional Technologies 47 Expired
US6871283B1 Processing trusted commands in trusted and untrusted environments Physics 32 Expired
US5339449A System and method for reducing storage channels in disk systems Physics 30 Expired
US6507909B1 Method for executing trusted-path commands Physics 25 Expired
US9485262B1 Detecting past intrusions and attacks based on historical network traffic information Electricity 14 Active
US8094812B1 Updating stored passwords Electricity 12 Active
US5826254A System for selectively browsing a large, distributed directory tree using authentication links Emerging Cross-Sectional Technologies 12 Expired
US11483339B1 Detecting attacks and quarantining malware infected devices Electricity 10 Active
US8290991B2 Atomic deletion of database data categories Physics 6 Active
US5220661A System and method for reducing timing channels in digital data processing systems Physics 3 Expired
US7036022B1 Verification of trusted-path commands Physics 2 Expired
US8214411B2 Atomic deletion of database data categories Physics 2 Active
US10075432B2 Updating stored passwords Electricity 0 Active
US9848006B2 Detecting past intrusions and attacks based on historical network traffic information Electricity 0 Active
US11477028B2 Preventing account lockout through request throttling Physics 0 Active
US11930036B2 Detecting attacks and quarantining malware infected devices Electricity 0 Active
US9401913B2 Updating stored passwords Electricity 0 Active
US12341809B2 Defending against volumetric attacks Electricity 0 Active
US9001999B2 Updating stored passwords Electricity 0 Active
US8478797B2 Atomic deletion of database data categories Physics 0 Active

Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.