Inventor · Pittsburgh, PA, US

David Lambeth

62Patents
33h-index
37Co-inventors
88Inventor score

Filing activity: Oct 4, 1976 → Jan 9, 2019

Most-cited inventions

PatentTitleAreaCited byStatus
US7056455B2 Process for the preparation of nanostructured materials Emerging Cross-Sectional Technologies 188 Expired
US5062021A Selectively textured magnetic recording media Emerging Cross-Sectional Technologies 163 Expired
US8011577B2 Payment cards and devices with gift card, global integration, and magnetic stripe reader communication functionality Physics 146 Active
US8579203B1 Electronic magnetic recorded media emulators in magnetic card devices Physics 136 Active
US8382000B2 Payment cards and devices with enhanced magnetic emulators Physics 124 Active
US8424773B2 Payment cards and devices with enhanced magnetic emulators Physics 121 Active
US8020775B2 Payment cards and devices with enhanced magnetic emulators Physics 116 Active
US8286876B2 Cards and devices with magnetic emulators and magnetic reader read-head detectors Physics 114 Active
US8517276B2 Cards and devices with multifunction magnetic emulators and methods for using same Physics 108 Active
US8459548B2 Payment cards and devices with gift card, global integration, and magnetic stripe reader communication functionality Physics 103 Active
US8590796B1 Cards having dynamic magnetic stripe communication devices fabricated from multiple boards Physics 102 Active
US10255545B2 Cards and devices with multifunction magnetic emulators and methods for using same Physics 95 Active
US10223631B2 Cards and devices with multifunction magnetic emulators and methods for using same Physics 95 Active
US10032100B2 Cards and devices with multifunction magnetic emulators and methods for using same Physics 95 Active
US8602312B2 Systems and methods for drive circuits for dynamic magnetic stripe communications devices Electricity 94 Active
US8608083B2 Cards and devices with magnetic emulators with zoning control and advanced interiors Physics 92 Active
US8973824B2 Cards and devices with magnetic emulators with zoning control and advanced interiors Physics 91 Active
US5108781A Process for manufacturing selectively textured magnetic recording media Physics 91 Expired
US8668143B2 Payment cards and devices with gift card, global integration, and magnetic stripe reader communication functionality Physics 91 Active
US5693426A Magnetic recording medium with B2 structured underlayer and a cobalt-based magnetic layer Emerging Cross-Sectional Technologies 77 Expired
US8875999B2 Payment cards and devices with gift card, global integration, and magnetic stripe reader communication functionality Physics 74 Active
US6248416A Highly oriented magnetic thin films, recording media, transducers, devices made therefrom and methods of making Emerging Cross-Sectional Technologies 61 Expired
US4423934A Photographic camera with digital controller and method of manufacture Physics 58 Expired
US8881989B2 Cards and devices with magnetic emulators with zoning control and advanced interiors Physics 53 Active
US9004368B2 Payment cards and devices with enhanced magnetic emulators Physics 51 Active

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