David A. Rogers

US Patent 11175210 System and methods for evaluating an air purification system

US Patent 11181264 Detection of leakage in recovery boiler

US Patent 11181434 Leakage inspection device

US Patent 11181435 Sniffer probe, leak detector and leak detection method

US Patent 11181460 Apparatus and method for measuring permeation of contaminants through a complex protective material swatch

US Patent 11181461 Filter testing apparatus and method

US Patent 7404311 Breath test simulator

US Patent 7409914 Aligning components of a measuring system

US Patent 7415864 Orifice test device for protective mask testers

US Patent 7415877 Gas sensor

US Patent 7418880 Sample collector using a syringe with a side port in the barrel

US Patent 7418882 Measuring probe

US Patent 7424822 Micro-hardness measurement method and micro-hardness meter

US Patent 7426879 Inspection method and inspection apparatus of reinforced concrete pipe

US Patent 7428838 Calibration for an oil-consumption-measurement system

US Patent 7434450 Method and apparatus for detecting exhaust gas sensor defect

US Patent 7439457 Apparatus for determining relative density of produce using weighing and size measuring

US Patent 7441473 Variable-altitude testing systems

US Patent 7444855 Orthogonal rheometer

US Patent 7454945 Mercury monitoring system and calibration

US Patent 7454956 Heat exchanger leak detection using mass gas flow metering

US Patent 7454957 Method for leak testing and leak testing apparatus

US Patent 7454958 Acoustic determination of properties of reservoirs and of fluids contained therein

US Patent 7454960 Hardness tester with a loading structure of the indenter independent of the stress frame connecting the indenter to the anvil

US Patent 7454985 Method and device for determining the hydraulic flow rate in a pump driven by a synchronous electric motor

US Patent 7454988 Method for fluid sampling using electrically controlled droplets

US Patent 7454990 Variably controlled accelerated weathering test apparatus

US Patent 7458247 Vacuum apparatus including a particle monitoring unit, particle monitoring method, and program

US Patent 7458248 Method and apparatus to detect genuine or hoax contaminants

US Patent 7458261 Liquid level detector

US Patent 7458284 Three-stage dust sampler

US Patent 7458285 Device for cryopreservation of samples and method for producing the device

US Patent 7458289 Sensor system for an pipeline inspection tool

US Patent 7461537 Device and method for calibration of a mass flow sensor

US Patent 7461541 Leak detection method for a primary containment system

US Patent 7464581 Vacuum apparatus including a particle monitoring unit, particle monitoring method and program, and window member for use in the particle monitoring

US Patent 7467536 Positioning system for single or multi-axis sensitive instrument calibration and calibration system for use therewith

US Patent 7467548 Radar level gauge system and coupling

US Patent 7469570 Calibrating system for measuring sprayed materials

US Patent 7469586 Sensor unit having a connection cable

US Patent 7469607 Sampling needle and sample injection apparatus

US Patent 7472584 Device to measure the solidification properties of a liquid film and method therefor

US Patent 7472612 Aerosol collection apparatus and method

US Patent 7475591 Methods and systems for hydrostatic testing a pipeline

US Patent 7475593 High temperature near infrared for measurements and telemetry in well boreholes

US Patent 7481105 Tank system with fuel level gauge

US Patent 7484409 Fluid level switch

US Patent 7493793 Breath test simulator

US Patent 7493795 Gas detection method and gas detection apparatus

US Patent 7493799 System and method for dynamic lubrication adjustment for a lubrication analysis system

US Patent 7497116 Flow rate estimation method of blood pump

US Patent 7497137 Method of monitoring and/or determining the condition of a force-measuring device, and force-measuring device

US Patent 7500382 Detection of leaks in heat exchangers

US Patent 7503204 Systems and methods for residue collection

US Patent 7508044 End face sensor and method of producing the same

US Patent 7509831 Method for determining a pressure that corresponds to a flow rate through a check valve

US Patent 7509838 Correction of humidity measurement results of a radiosonde

US Patent 7509839 Cosmetic kit including an indicator or sensor of ambient humidity

US Patent 7509841 Flexible leak detection system and method for double carcass hose

US Patent 7513171 Autonomous rapid facility chemical agent monitor via smith-purcell terahertz spectrometry

US Patent 7513751 Method for regulating the vacuum supply of calibration tools

US Patent 11187633 Liquefied natural gas vaporization sampling system

US Patent 7516648 Apparatus and methods for leak detection in bioprocessing bags

US Patent 7520188 Method for controlling quality of a fiberglass mat

US Patent 7523646 Filtering and measuring apparatus for oils

US Patent 7523670 Sensor element for detecting a physical measuring variable between bodies exposed to high tribological strain

US Patent 7526969 Method and device for the contactless detection of flat objects

US Patent 7527768 Liquid dispenser with vacuum control

US Patent 7533566 Fluid measuring device

US Patent 7538662 Programmable vehicle gauge apparatus, system, and method

US Patent 7541191 Integrated apparatus for hematological analysis and related method

US Patent 7543478 Device and method for detecting hazardous material in mail

US Patent 7543492 Vacuum line and a method of monitoring such a line

US Patent 7552620 Fluid permeation testing method employing mass spectrometry

US Patent 7552654 Soil sampler apparatus and method

US Patent 7553164 Circuit device and method of manufacturing the same

US Patent 7559225 Artificial throat

US Patent 7559232 Vacuum turntable system for leak testing melt blown bottles

US Patent 7568376 Exhaust gas sensor

US Patent 7568379 Method of measuring porosity by means of ellipsometry and device for implementing one such method

US Patent 7581426 Test adapter for aircraft static vent

US Patent 7581640 Reusable beverage cup with counter

US Patent 7584061 Device for measuring permeate flow and permeate conductivity of individual reverse osmosis membrane elements

US Patent 7584649 Sensor with microelectro-mechanical oscillators

US Patent 7584651 Procedure to diagnose a leak in the fuel tank in a fuel tank ventilation system

US Patent 7587925 Method for operating a sensor for recording particles in a gas stream and device for implementing the method

US Patent 7587926 Method and apparatus for testing detectors

US Patent 7587929 Joint combined aircrew systems tester

US Patent 7587952 Automated sampling system

US Patent 7591165 Control circuit for sensor array and related methods

US Patent 7594422 Apparatus and method for calibrating a trace detection portal

US Patent 7596988 High performance liquid chromatography sample introduction optimized with bubble detection

US Patent 7597013 Device and method for detecting the presence of test gas

US Patent 7597017 Human locomotion simulator

US Patent 7600411 Surface friction testing apparatus

US Patent 7600416 Apparatus for measuring surface tension

US Patent 7600423 Volume or fluid level sensing system and method

US Patent 7600427 Gage enclosure with cover removal mechanism

US Patent 7600442 Ultrasonic probing method and apparatus therefor utilizing resonance phenomenon

US Patent 7603905 Magnetic navigation and imaging system

US Patent 7607348 Measuring device

US Patent 7607363 Liquid volume metering device and method

US Patent 7607647 Stabilizing a substrate using a vacuum preload air bearing chuck

US Patent 7609068 System and method for particulate sensor diagnostic

US Patent 7610794 Particle detection sensor, method for manufacturing particle detection sensor, and method for detecting particle using particle detection sensor

US Patent 7614279 Determination of pore structure characteristics of filtration cartridges as a function of cartridge length

US Patent 7614280 Quantitative fit test system and method for assessing respirator biological fit factors

US Patent 7621192 Medical device durability test apparatus having an integrated particle counter and method of use

US Patent 7624618 Device with a screw plug and a range of devices

US Patent 7624624 Pump assembly and method for leak detection of fluid system

US Patent 7628054 Calibration utility for non-linear measurement system

US Patent 7628055 Method of determining the zero-clearance pressure in a controlled clearance piston gauge

US Patent 7628067 Electrode rod for detecting water-level, method of detecting water-level, method of controlling water-level in a boiler, and method of controlling water-level in a steam separator

US Patent 7628068 Case, window and gasket for measuring device

US Patent 7628075 Multiple-frequency ultrasonic test probe, inspection system, and inspection method

US Patent 7630840 Oxygen sensor readiness detection

US Patent 7631537 Gas sensor

US Patent 7631544 Flow analysis system

US Patent 7636624 Diagnostic method and control apparatus for gas sensor

US Patent 7637154 Adjustable measuring container and cutting board

US Patent 7637723 Cavitation detection device and method

US Patent 7640808 Strip with acoustic damping properties

US Patent 7647808 Apparatus for calibration of fluid-operated power torque tools

US Patent 7661290 Gas sensor test and calibration system

US Patent 7661311 Moulded part for connection to a rim well of a wheel and rim well which is connected to a moulded part

US Patent 7669490 Apparatus and method for testing filters in a clean room

US Patent 7677087 Quartz sensor and sensing device

US Patent 7681435 Arrangement for monitoring the leak-tightness of an evacuated space

US Patent 7681436 In-situ water analysis method and system

US Patent 7690246 System and method for dynamic lubrication adjustment for a lubrication analysis system

US Patent 7698936 Fuel gauge for fuel cartridges

US Patent 7698962 Flexible sensor interface for a railcar truck

US Patent 7707882 Gauge to indicate the level of beverage held in a beverage container

US Patent 7712350 Apparatus and method for determining density of insulation

US Patent 7712386 Method and device for the contactless detection of flat objects

US Patent 7721897 Automated sample collection apparatus

US Patent 7726211 Scent evidence collecting and transfer device

US Patent 7726214 Method and device for the contactless detection of flat objects

US Patent 7730759 Method and device for calibrating a humidity sensor and sensor arrangement having humidity sensor capable of calibration

US Patent 7730766 Gas viscosity sensor

US Patent 7736590 Method for measuring oxygen amount in hermetically sealed container and piercing device for hermetically sealed container used therefore

US Patent 7743647 Orifice test device for protective mask testers

US Patent 7748256 Nondestructive testing of torsional vibration dampers

US Patent 7752888 System for gas permeation testing

US Patent 7752889 Apparatus and method for determining density of insulation

US Patent 7752893 In-situ analysis method and system

US Patent 7752894 Method for measuring consistency, chopper structure, and consistency meter

US Patent 7759945 Sensor including dual range, application specific integrated chip (ASIC)

US Patent 7762121 Method and apparatus for sensing hydrogen gas

US Patent 7765854 Microcantilever stress sensor for fluid analysis

US Patent 7765861 Method of adhesion measurement at the interface between layers

US Patent 7765868 Climate chamber for microscopes

US Patent 7765882 Apparatus and method for presenting a particulate sample to the scanning field of a sensor device

US Patent 7775976 Method to determine a coagulation property of a fluid

US Patent 7779667 Device for extracting at least one gas contained in a drilling mud and associated analysis assembly

US Patent 7779669 Diagnostic method and apparatus for gas sensor

US Patent 7779675 Leak indicator comprising a sniffer probe

US Patent 7780248 Glovebox for a double wall containment module

US Patent 7784329 Piezo-rheometric measuring cell and corresponding piezo-rheometer

US Patent 7784331 Acoustic determination of properties of reservoirs and of fluids contained therein

US Patent 7784356 Inspection systems and methods for multi-segment products

US Patent 7788965 Portable friction testing device

US Patent 7788967 Method and apparatus for leak detection

US Patent 7797980 Method for calibrating blood analysis machines

US Patent 7797984 Vacuum apparatus including a particle monitoring unit, particle monitoring method and program, and window member for use in the particle monitoring

US Patent 7802461 Method and device for detecting leaks

US Patent 7802462 Gas flowmeter calibration stand

US Patent 7802466 Oscillating sensor and fluid sample analysis using an oscillating sensor

US Patent 7802472 Ruggedized sensor probe

US Patent 7810381 Hydrostatically compensated deep sea probe with shear strain gauges

US Patent 7827854 Method and kit for adsorbent performance evaluation

US Patent 7827855 Method and kit for adsorbent performance evaluation

US Patent 7827856 Roughness scanner

US Patent 7827873 Soil sampling apparatus and method

US Patent 7832255 Sealed device and leak test method and manufacturing method thereof

US Patent 7832257 Determining fluid rheological properties

US Patent 7836751 Ultra fine particle sensor

US Patent 7845224 Liquid level sensor and liquid level estimation method

US Patent 7851712 Gravimetric moisture measurement instrument

US Patent 7856863 Breath sampling device

US Patent 7856864 Deriving information about leaks in pipes

US Patent 7861576 Apparatus for analyzing sample using centrifugal force and inertia

US Patent 7861582 Flow rate estimation method of blood pump

US Patent 7866203 Method for the quantitative determination of poloxamers

US Patent 7866223 Method of obtaining samples of meat to assay for microbial contamination

US Patent 7874201 Leakage search assembly having a sniffing probe

US Patent 7879227 Screen condition checking apparatus and method

US Patent 7882728 Dual anomaly judgment device for a fuel cell

US Patent 7886578 Sensor element for particle sensors and method for operating the sensor element

US Patent 7895881 Apparatus for detection of chemical or biological substances and method for cleaning the apparatus

US Patent 7895890 Liquid depth sensing and identification system

US Patent 7899645 Acoustic assessment of characteristics of a fluid relevant to acoustic ejection

US Patent 7905131 Apparatus and method for detecting resin leak

US Patent 7905145 Capacitive gauge for fuel tank

US Patent 7905154 Apparatus and method of contaminant detection for food industry

US Patent 7908900 Friction measuring device

US Patent 7918122 Container transport system and measurement container

US Patent 7918125 Methods and devices to test diffusion rates of ocular drug delivery systems

US Patent 7921594 Methods for testing insect control products

US Patent 7921694 Leak detector and detection method using radiation transmitted through a fluid line

US Patent 7926326 System and method for interfacial rheometry

US Patent 7926344 Ultrasonic fluid level sensing using a dry couplant

US Patent 7930926 Determination of permeability from damping

US Patent 7934414 Method and apparatus for manufacturing a measuring device for determining and/or monitoring a process variable and measuring device

US Patent 7938002 Apparatus for detecting water level mixtures in fluids

US Patent 7938032 Dissolution testing with in-situ gravimetric volume measurement

US Patent RE42358 Subsea vehicle assisted pipeline commissioning method

US Patent 7950267 Liquid propane gas injector testing system and methods

US Patent 7963149 Method and device for determining hydraulic leakage rate in liquid-conveying sections, in particular, injection valves of internal combustion engines

US Patent 7963164 Capacitive sensor assembly for determining level of fluent materials

US Patent 7968052 Detection and subsequent removal of an aperture blockage

US Patent 7971470 Method for detecting chemical substances in whole, closed and/or sealed containers

US Patent 7971472 Leak tester for a carrier for printhead integrated circuitry

US Patent 7975530 Oscillating sensor and fluid sample analysis using an oscillating sensor

US Patent 7975531 Microfluidic sensor for interfacial tension measurement and method for measuring interfacial tension

US Patent 7980132 Sensor assembly having a thermally insulating enclosure

US Patent 7984640 Pressure-based tester for a platform assembly

US Patent 7987699 Pneumatic assembly for a pressure decay tester

US Patent 7987701 Real-time, on-line analysis for the quantification of total haloacetic acid and trihalomethane species in drinking water supplies

US Patent 7988452 Test head for protective mask testing and test head system

US Patent 7992437 Liquid level detector

US Patent 7997119 Chemical sampling and multi-function detection methods and apparatus

US Patent 7997132 Capacitive sensor assembly for determining relative position

US Patent 8001825 Auto-calibrating metering system and method of use

US Patent 8006967 Cradle assembly for a pressure decay leak tester

US Patent 8011226 Leakage detection method using micromachined-thermal-convection accelerometer