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Class Information
Number: 73/53.05
Name: Measuring and testing > Liquid analysis or analysis of the suspension of solids in a liquid > Lubricant testing
Description: Subject matter wherein the determination is made by measuring the capability of a substance to reduce friction, heat, and wear when it is introduced as a film between two relatively movable solid surfaces.

Sub-classes under this class:

Class Number Class Name Patents
73/53.06 By analyzing a characteristic of a measuring surface 27
73/53.07 By solid content 65

Patents under this class:
1 2 3 4 5

Patent Number Title Of Patent Date Issued
8710973 Automatic engine oil life determination with a factor for oil quality Apr. 29, 2014
8695405 Bearing, arrangement for determining properties of a lubricant in a bearing and method for determining properties of a lubricant in a bearing Apr. 15, 2014
8664966 Device for evaluating degree of degradation of lubricating oil Mar. 4, 2014
8640528 Lubrication condition monitoring Feb. 4, 2014
8626422 Electronic oil pump Jan. 7, 2014
8614588 Active filtering of oil Dec. 24, 2013
8593162 Fuel-aspect sensor Nov. 26, 2013
8540869 Method for forming finished lubricants Sep. 24, 2013
8531672 Lubricant deterioration detector and bearing assembly equipped with such detector Sep. 10, 2013
8522604 Metal wear detection apparatus and method employing microfluidic electronic device Sep. 3, 2013
8512547 Voltammetric technique to determine the individual concentration of different antioxidants of the same class Aug. 20, 2013
8502004 Process for evaluating a refinery feedstock Aug. 6, 2013
8490471 Bench test screening method for fluid antifoam additives Jul. 23, 2013
8466096 1,3,2-dioxaphosphorinane, 2-sulfide derivatives for use as anti-wear additives in lubricant compositions Jun. 18, 2013
8421613 Auto fluid condition alert Apr. 16, 2013
8342013 Oil-degradation determination apparatus Jan. 1, 2013
8336370 Method for measurement of crude oil and bitumen dead oil viscosity and density Dec. 25, 2012
8340928 Sensor and method for detecting oil deterioration and oil level Dec. 25, 2012
8191403 Petroleum viscosity measurement and communication system and method Jun. 5, 2012
8187455 Voltammetric technique to determine the individual concentration of different antioxidants of the same class May. 29, 2012
8166803 Method for the quantitative determination of an aging effect on motor oil May. 1, 2012
8159232 Fuel property sensor Apr. 17, 2012
8127597 Oil condition sensing methods and systems Mar. 6, 2012
8109138 Method and system for estimating engine oil life based on viscosity Feb. 7, 2012
8087287 Method for analyzing engine oil degradation Jan. 3, 2012
8082776 On-vehicle evaluation of oil formulation Dec. 27, 2011
8050814 Apparatus and method for determining remaining transmission oil life Nov. 1, 2011
8026105 Quantification of lubricant reactivity using constant volume combustion device Sep. 27, 2011
7984641 Method and test fixture for evaluating a lubrication containment system Jul. 26, 2011
7946154 Hydraulic fluid determination system and method May. 24, 2011
7928741 Oil monitoring system Apr. 19, 2011
7918127 Test method for the determination of an oil separation tendency of lubricating greases and test device for carrying out the same Apr. 5, 2011
7875458 Application of test for residual wax contamination in basestocks to correlate with the low temperature viscometric properties of fully formulated oils Jan. 25, 2011
7852201 Apparatus and method for determining the remaining useful life of a transmission filter Dec. 14, 2010
7748256 Nondestructive testing of torsional vibration dampers Jul. 6, 2010
7740483 Portable demonstration apparatus and method for the comparison of lubricants and/or lubricant additives Jun. 22, 2010
7741122 Determination of total base number in marine engine lubricants by elements Jun. 22, 2010
7735362 Thermomechanical sensor for fluid diagnostics Jun. 15, 2010
7729870 Methods for detecting oil deterioration and oil level Jun. 1, 2010
7721590 Resonator sensor assembly May. 25, 2010
7698929 High throughput screening methods for lubricating oil compositions Apr. 20, 2010
7690246 System and method for dynamic lubrication adjustment for a lubrication analysis system Apr. 6, 2010
7614284 Oil life monitoring system for a diesel engine Nov. 10, 2009
7568894 Hermetic compressor Aug. 4, 2009
7523646 Filtering and measuring apparatus for oils Apr. 28, 2009
7521945 Oil monitoring system Apr. 21, 2009
7493799 System and method for dynamic lubrication adjustment for a lubrication analysis system Feb. 24, 2009
7426855 Method and apparatus for testing the adhesive strength of overlays of plain bearing bushings Sep. 23, 2008
7402800 Method and device for the continuous determination of damage to systems used for the post-treatment of heat engine exhaust gases Jul. 22, 2008
7387101 Oil pan for engine having a shield member covering an air hole of an oil sensor Jun. 17, 2008

1 2 3 4 5

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