Patent assignee · US · COMPANY

PERFTECH, INC.

59Patents
57Active
59Granted
50Portfolio score

Filing activity: Dec 18, 2001 → Mar 28, 2024 · 5 expiring within 5 years

Most-cited patents

PatentTitleAreaCited byStatus
US8095666B2 Internet provider subscriber communications system Electricity 251 Active
US7328266B2 Internet provider subscriber communications system Electricity 21 Expired
US8108524B2 Internet connection user communications system Electricity 15 Expired
US8806004B2 Method and apparatus of processing invalid user input search information Electricity 7 Active
US8793386B2 Internet provider subscriber communications system Electricity 5 Active
US9727658B2 Method and apparatus of processing invalid user input search information Electricity 5 Active
US8838809B2 Internet connection user communications system Electricity 5 Active
US9307041B2 Internet connection user communications system Electricity 5 Active
US10225210B2 Internet provider subscriber communications system Electricity 5 Active
US8161284B1 System, method and computer readable medium for message authentication to subscribers of an internet service provider Electricity 5 Active
US10616131B2 Internet provider subscriber communications system Electricity 3 Active
US10915596B2 Method and apparatus of processing invalid user input search information Electricity 2 Active
US10979484B2 Method and system for providing watermark to subscribers Electricity 2 Active
US11336586B2 Internet provider subscriber communications system Electricity 2 Active
US10834157B2 Internet provider subscriber communications system Electricity 2 Active
US11743205B2 Internet provider subscriber communications system Electricity 1 Active
US11580185B2 Method and apparatus of processing invalid user input search information Electricity 1 Active
US9936037B2 System and method for providing redirections Physics 1 Active
US8856314B1 System, method and computer readable medium for determining users of an internet service Electricity 1 Active
US10986102B2 System, method and computer readable medium for processing unsolicited electronic mail Electricity 0 Active
US10986417B2 System and method for set-top-box messaging display Electricity 0 Active
US10904265B2 System, method and computer readable medium for message authentication to subscribers of an internet service provider Electricity 0 Active
US10631062B2 System and method for set-top-box messaging display Electricity 0 Active
US10348738B2 System, method and computer readable medium for message authentication to subscribers of an internet service provider Electricity 0 Active
US8489770B2 Method and system for providing watermark to subscribers Electricity 0 Active

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