Inventor · Sutton, MA, US

Eric J. Freeman

25Patents
5h-index
30Co-inventors
69Inventor score

Filing activity: Oct 17, 2002 → Nov 29, 2023

Most-cited inventions

PatentTitleAreaCited byStatus
US8934647B2 Orientation-responsive acoustic driver selection Electricity 386 Active
US8934655B2 Orientation-responsive use of acoustic reflection Electricity 384 Active
US10720173B2 Voice capture processing modified by back end audio processing state Physics 45 Active
US7463746B2 Narrow opening electroacoustical transducing Electricity 15 Expired
US9049518B2 Orientation-responsive acoustic array control Electricity 5 Active
US8351629B2 Waveguide electroacoustical transducing Electricity 5 Active
US7269270B2 Standing wave reducing Electricity 4 Expired
US11012780B2 Speaker system with customized audio experiences Electricity 3 Active
US7995778B2 Acoustic transducer array signal processing Electricity 3 Active
US11217268B2 Real-time augmented hearing platform Electricity 2 Active
US10521512B2 Dynamic text-to-speech response from a smart speaker Physics 1 Active
US11871209B2 Spatialized audio relative to a peripheral device Electricity 0 Active
US8615097B2 Waveguide electroacoustical transducing Electricity 0 Active
US11388536B2 Orientation-responsive acoustic array control Electricity 0 Active
US11956617B2 Audio system Electricity 0 Active
US10264384B2 Orientation-responsive acoustic array control Electricity 0 Active
US10341794B2 Acoustical method for detecting speaker movement Physics 0 Active
US11064309B2 Multi-tuned speaker system Electricity 0 Active
US9253561B2 Orientation-responsive acoustic array control Electricity 0 Active
US12302076B2 Audio system with mixed rendering audio enhancement Electricity 0 Active
US9736612B2 Orientation-responsive acoustic array control Electricity 0 Active
US11297457B2 Spatialized audio relative to a peripheral device General 0 Revoked
US9264794B2 Orientation-responsive acoustic array control Electricity 0 Active
US11895472B2 Audio system with mixed rendering audio enhancement Electricity 0 Active
US11356795B2 Spatialized audio relative to a peripheral device Electricity 0 Active

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