Inventor · Plymouth, MN, US

Karl D. Nelson

42Patents
6h-index
30Co-inventors
65Inventor score

Filing activity: Oct 4, 2012 → Dec 14, 2023

Most-cited inventions

PatentTitleAreaCited byStatus
US9077354B2 Low power reduction of biases in a micro primary frequency standard Physics 16 Active
US9285249B2 Atomic sensor physics package with metal frame Emerging Cross-Sectional Technologies 14 Active
US11268806B2 Dynamical locking of optical path times using entangled photons Physics 13 Active
US11193750B1 Dynamic optical interferometer locking using entangled photons Physics 13 Active
US9030655B2 Closed loop atomic inertial sensor Physics 10 Active
US9766071B2 Diverging waveguide atomic gyroscope Physics 6 Active
US10801840B1 Four port atomic gyroscope Physics 6 Active
US11429010B1 Systems and methods for a tunable radio frequency synthesizer utilizing optical frequency combs Electricity 5 Active
US9417261B2 Atomic referenced optical accelerometer Physics 5 Active
US10571269B1 Circular resonator evanescent-wave trapped atomic gyroscope Electricity 4 Active
US10823571B1 Switching SBS gyro with fixed pump separation Physics 4 Active
US9083363B2 Systems and methods for a cold atom frequency standard Emerging Cross-Sectional Technologies 4 Active
US10823668B2 Apparatuses and methods for alkali spectroscopy Physics 2 Active
US10928200B1 Frequency pulling reduction in SBS laser Electricity 2 Active
US9491802B2 On-chip alkali dispenser Physics 2 Active
US11215760B2 Device for emission of arbitrary optical beam profiles from a chip to free space Physics 2 Active
US9887019B2 Systems and methods for eliminating multi-path errors from atomic inertial sensors Physics 1 Active
US8907276B2 Measuring the populations in each hyperfine ground state of alkali atoms in a vapor cell while limiting the contribution of the background vapor Electricity 1 Active
US11105977B1 Device for the emission of arbitrary optical beam profiles from waveguides into two-dimensional space Physics 1 Active
US11906875B2 Systems, devices, and methods for optical frequency combs Physics 1 Active
US10907967B1 Ring laser gyroscopes with active volume Bragg grating Physics 1 Active
US11431144B2 Suppression of higher-order lasing in a Brillouin laser using nested ring resonators Electricity 1 Active
US11362480B2 Self-injection locked stimulated Brillouin scattering laser Electricity 1 Active
US10650630B2 Authentication systems, authentication devices, and methods for authenticating a value article Physics 1 Active
US12199624B2 Continuous calibration of an atomic clock to an external reference Electricity 0 Active

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