Inventor · Kennett Square, PA, US

Robert E. Bridges

157Patents
33h-index
72Co-inventors
93Inventor score

Filing activity: Nov 20, 1979 → Jun 21, 2022

Most-cited inventions

PatentTitleAreaCited byStatus
US7800758B1 Laser-based coordinate measuring device and laser-based method for measuring coordinates Physics 195 Active
US7352446B2 Absolute distance meter that measures a moving retroreflector Physics 148 Expired
US7372581B2 Three-dimensional coordinate measuring device Physics 109 Expired
US6847436B2 Chopper-stabilized absolute distance meter Physics 88 Expired
US7388654B2 Retroreflector covered by window Physics 88 Expired
US8467072B2 Target apparatus and method of making a measurement with the target apparatus Physics 85 Active
US8848203B2 Six degree-of-freedom laser tracker that cooperates with a remote projector to convey information Physics 78 Active
US7327446B2 Self-compensating laser tracker Physics 77 Expired
US7701559B2 Absolute distance meter that measures a moving retroreflector Physics 73 Active
US8619265B2 Automatic measurement of dimensional data with a laser tracker Physics 71 Active
US7248374B2 Spherically mounted light source with angle measuring device, tracking system, and method for determining coordinates Physics 70 Expired
US6964113B2 Scale-bar artifact and methods of use Physics 68 Expired
US5861956A Retroreflector for use with tooling ball Physics 66 Expired
US8902408B2 Laser tracker used with six degree-of-freedom probe having separable spherical retroreflector Physics 65 Active
US8677643B2 Coordinate measurement machines with removable accessories Physics 63 Active
US7466401B2 Self-compensating laser tracker Physics 57 Active
US7583375B2 Self-compensating laser tracker Physics 56 Active
US8670114B2 Device and method for measuring six degrees of freedom Physics 55 Active
US7576847B2 Camera based six degree-of-freedom target measuring and target tracking device with rotatable mirror Physics 54 Active
US9151830B2 Six degree-of-freedom laser tracker that cooperates with a remote structured-light scanner Physics 54 Active
US9007601B2 Automatic measurement of dimensional data with a laser tracker Physics 51 Active
US9207309B2 Six degree-of-freedom laser tracker that cooperates with a remote line scanner Physics 51 Active
US8593648B2 Target method using indentifier element to obtain sphere radius Physics 50 Active
US8875409B2 Coordinate measurement machines with removable accessories Physics 50 Active
US8525983B2 Device and method for measuring six degrees of freedom Physics 39 Active

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