Computer software; engineering design software; interactive computer software; application software; computer software applications (downloadable); simulation software for use in digital computers; software for the automated collection, processing, analysis, storage and display of data relating to drilling mud properties and flow rate, sensing drilling parameters, analyzing drilling performance, optimizing drilling rig performance and providing safety information for use with oil and gas drilling rigs; a system for providing early warnings and detection of flow and density anomalies for oil and gas drilling rigs consisting of sensors for measuring flow and density of fluids for oil and gas drilling rigs and software used in connection therewith for the collection, processing, analysis, storage and display of data relating to drilling mud properties and flow rate, sensing drilling parameters, analyzing drilling performance, optimizing drilling rig performance and providing safety information for use with oil and gas drilling rigs; sensors for use with the combined, simultaneous measurement of flow and density of fluids for use in connection with oil and gas drilling rigs

Apparatus for measuring; apparatus for measuring liquids; apparatus for measuring pressure; computer measuring devices containing data; electronic measuring instruments; flow measuring apparatus; instruments for measuring levels of fluids; mass flow measuring apparatus; measuring sensors; meters for measuring resistance; ultrasonic fluid measuring apparatus; ultrasonic measuring apparatus; volumetric measuring apparatus