Inventor · Cambridge, MA, US

Phil Libin

75Patents
14h-index
39Co-inventors
84Inventor score

Filing activity: Apr 8, 2003 → Jun 12, 2023

Most-cited inventions

PatentTitleAreaCited byStatus
US7353396B2 Physical access control Electricity 104 Expired
US7205882B2 Actuating a security system using a wireless device Physics 71 Expired
US7822989B2 Controlling access to an area Physics 65 Active
US7600129B2 Controlling access using additional data Electricity 59 Active
US7716486B2 Controlling group access to doors Physics 43 Active
US7616091B2 Actuating a security system using a wireless device Physics 39 Active
US11317060B1 Individual video conferencing spaces with shared virtual channels and immersive users Electricity 37 Active
US8015597B2 Disseminating additional data used for controlling access Electricity 32 Active
US11228625B1 AI director for automatic segmentation, participant behavior analysis and moderation of video conferences Electricity 31 Active
US11258619B2 Initializing chat sessions by pointing to content Electricity 28 Active
US9800995B2 Distributed application functionality and user interface for multiple connected mobile devices Electricity 27 Active
US8261319B2 Logging access attempts to an area Electricity 22 Active
US8171524B2 Physical access control Electricity 19 Active
US7966487B2 Communication-efficient real time credentials for OCSP and distributed OCSP Electricity 14 Active
US10007406B1 Adaptive writing interface Physics 12 Active
US8761660B2 Using intelligent screen cover in learning Physics 12 Active
US9158288B2 Logging access attempts to an area Electricity 11 Active
US9449443B2 Logging access attempts to an area Physics 11 Active
US7660994B2 Access control Physics 11 Active
USD709130S1 Note pad holder General 9 Active
USD709131S1 Note pad holder General 8 Active
US7657751B2 Efficient and secure data currentness systems Electricity 8 Active
US9230375B2 Physical access control Physics 8 Active
US9311549B2 Using surfaces with printed patterns for identification of imaging and data processing activities Physics 6 Active
US11093306B1 Automatic prioritization and delivery of audio-visual notifications optimized for user workflow Electricity 6 Active

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