Inventor · Palo Alto, CA, US

Mark A. Troll

27Patents
12h-index
26Co-inventors
81Inventor score

Filing activity: Mar 30, 1988 → Dec 14, 2020

Most-cited inventions

PatentTitleAreaCited byStatus
US5198912A Volume phase hologram with liquid crystal in microvoids between fringes Physics 138 Expired
US6103474A Hybridization assay signal enhancement Chemistry; Metallurgy 119 Expired
US4970129A Holograms Emerging Cross-Sectional Technologies 116 Expired
US5721435A Methods and apparatus for measuring optical properties of biological and chemical substances Physics 113 Expired
US6487333B2 Total internal reflection optical switch Physics 99 Expired
US5853993A Signal enhancement method and kit Chemistry; Metallurgy 98 Expired
US6320994A Total internal reflection optical switch Physics 95 Expired
US6110682A Signal enhancement method and kit Chemistry; Metallurgy 74 Expired
US5763870A Method and system for operating a laser device employing an integral power-regulation sensor Electricity 53 Expired
US8673550B2 MSP nanopores and related methods Physics 36 Active
US6188815A Optical switching device and method utilizing fluid pressure control to improve switching characteristics Physics 20 Expired
US9170230B2 MSP nanopores and related methods Physics 15 Active
US6327397A System and method for providing temperature control for a thermally activated optical switch using constant total power Physics 11 Expired
US9624275B2 Msp nanopores and related methods Physics 7 Active
US9534024B2 Msp nanopores and related methods Physics 5 Active
US6757459B2 Piezoelectrically driven, liquid-actuated optical cross-bar switch Physics 5 Expired
US6890619B2 Optical systems and refractive index-matching compositions Emerging Cross-Sectional Technologies 4 Expired
US6470109B1 Determining waveguide positions and angles for efficient reflective coupling Physics 4 Expired
US6377873B1 Method for determining optimum pressure for forming a bubble in liquid Performing Operations; Transporting 3 Expired
US9540422B2 MSP nanopores and related methods Physics 3 Active
US6674933B2 Optical switch controlled by selective activation and deactivation of an optical source Physics 3 Expired
US6744791B2 Rare earth-doped medium with photorefractive grating as compact laser source Electricity 1 Expired
US6798939B2 Bubble stability in an optical switch Physics 1 Expired
US10870883B2 MSP nanopores and related methods Physics 0 Active
US9988679B2 MSP nanopores and related methods Physics 0 Active

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