Inventor · Auburn, NY, US

David Sperduti

32Patents
20h-index
31Co-inventors
85Inventor score

Filing activity: Dec 7, 1990 → Sep 22, 2016

Most-cited inventions

PatentTitleAreaCited byStatus
US8544737B2 Terminal including imaging assembly Physics 562 Active
US8615487B2 System and method to store and retrieve identifier associated information content Physics 549 Active
US8561895B2 Terminal including imaging assembly Physics 546 Active
US8967468B2 Terminal including imaging assembly Physics 482 Active
US9734493B2 Terminal including imaging assembly Physics 110 Active
US7748620B2 Transaction terminal including imaging module Physics 107 Active
US5323871A Rotary actuation mechanism for torque modulated transfer case Performing Operations; Transporting 106 Expired
US7121470B2 Transaction terminal having elongated finger recess Physics 101 Expired
US5363938A Power transfer system for a four-wheel drive vehicle Performing Operations; Transporting 59 Expired
US5411110A Power transfer system for a four-wheel drive vehicle Performing Operations; Transporting 54 Expired
US7451917B2 Transaction terminal comprising imaging module Physics 53 Expired
US5651749A Full-time transfer case with synchronized dual planetary gear reduction unit Mechanical Engineering; Lighting; Heating 46 Expired
US5330030A Two-speed transfer case with electronic torque modulation Mechanical Engineering; Lighting; Heating 38 Expired
US5332060A Linear actuation mechanism for electronically-controlled torque modulated transfer case Mechanical Engineering; Lighting; Heating 34 Expired
US5215160A Part-time on-demand transfer case and method Performing Operations; Transporting 31 Expired
US5582263A Full-time four wheel drive transfer case Performing Operations; Transporting 29 Expired
US7472825B2 Transaction terminal Physics 24 Expired
US5275253A Part-time transfer case with traction control Performing Operations; Transporting 22 Expired
US5720688A Full-time transfer case with synchronized dual planetary gear reduction unit Mechanical Engineering; Lighting; Heating 20 Expired
US5275252A Part-time transfer case with traction control Performing Operations; Transporting 20 Expired
US8407097B2 Proximity transaction apparatus and methods of use thereof Physics 16 Active
US5377800A Hydraulically-actuated shift system for a transfer case Mechanical Engineering; Lighting; Heating 16 Expired
US5655618A Torque modulated transfer case Performing Operations; Transporting 13 Expired
US5400866A Torque modulated transfer case Performing Operations; Transporting 13 Expired
US5105900A Transfer case cold shift assist Performing Operations; Transporting 12 Expired

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