Patent assignee · US · COMPANY

Level 3 Communications, LLC

1,123Patents
1,046Active
1,123Granted
65Portfolio score

Filing activity: Dec 12, 1997 → Aug 29, 2024 · 123 expiring within 5 years

Most-cited patents

PatentTitleAreaCited byStatus
US6614781B1 Voice over data telecommunications network architecture Electricity 772 Expired
US7949779B2 Controlling subscriber information rates in a content delivery network Electricity 332 Active
US7240368B1 Intrusion and misuse deterrence system employing a virtual network Electricity 310 Expired
US8281035B2 Optimized network resource location Electricity 288 Active
US7945693B2 Controlling subscriber information rates in a content delivery network Electricity 280 Active
US7283561B1 Secure network architecture with quality of service Electricity 249 Expired
US7822871B2 Configurable adaptive global traffic control and management Electricity 198 Expired
US8468245B2 Delivering resources to clients in a distributed computing environment Electricity 196 Active
US8478903B2 Shared content delivery infrastructure Electricity 190 Active
US8572208B2 Shared content delivery infrastructure Electricity 183 Active
US8473613B2 Transparent redirection of resource requests Electricity 182 Active
US8572210B2 Shared content delivery infrastructure and method of generating a web page Electricity 181 Active
US8683076B2 Method of generating a web page Electricity 181 Active
US8291046B2 Shared content delivery infrastructure with rendezvous based on load balancing and network conditions Electricity 181 Active
US7027997B1 Flexible web-based interface for workflow management systems Physics 152 Expired
US7860964B2 Policy-based content delivery network selection Electricity 148 Active
US6442169B1 System and method for bypassing data from egress facilities Electricity 146 Expired
US9838497B2 Content delivery network architecture with edge proxy Electricity 144 Active
US6831932B1 Transfer of SONET traffic over a packet-switched network Electricity 136 Expired
US8060613B2 Resource invalidation in a content delivery network Electricity 121 Active
US7949662B2 De-duplication of data in a data processing system Emerging Cross-Sectional Technologies 121 Expired
US7826752B1 Optical transmission apparatuses, methods, and systems Electricity 118 Active
US8989199B1 Control device discovery in networks having separate control and forwarding devices Electricity 113 Active
US8296396B2 Delivering resources to clients in a distributed computing environment with rendezvous based on load balancing and network conditions Electricity 113 Active
US9014047B2 System and method for aggregating and reporting network traffic data Emerging Cross-Sectional Technologies 108 Active

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