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Class Information
Number: 252/68
Name: Compositions > Vaporization, or expansion, refrigeration or heat or energy exchange > With lubricants, or warning, stabilizing or anti-corrosion agents or persistent gases
Description: Compositions which contain agents for lubrication, inhibiting corrosion or chemical decomposition, indicating or inhibiting leakage, or an auxiliary substance for persisting as a gas, without liquefaction, solution, or absorption thereof in any significant amount.










Patents under this class:
1 2 3 4 5 6 7 8 9 10 11 12 13

Patent Number Title Of Patent Date Issued
8709303 Dielectric insulation medium Apr. 29, 2014
8709276 Synthetic refrigeration oil composition for HFC applications Apr. 29, 2014
8703662 Lubricating oil composition for refrigerators and compressors with the composition Apr. 22, 2014
8691108 Refrigeration apparatus Apr. 8, 2014
8691109 Working fluids comprising difluoromethane and di-pentaerythritol ester Apr. 8, 2014
8685271 Refrigeration oil and compositions with hydrocarbon refrigerants Apr. 1, 2014
8673169 Lubricant composition for refrigerating machine Mar. 18, 2014
8663494 Terpene, terpenoid, and fullerene stabilizers for fluoroolefins Mar. 4, 2014
8628681 Heat transfer compositions Jan. 14, 2014
8623235 Block copolymer oil return agents Jan. 7, 2014
8623808 Compositions containing tetrafluoropropene and carbon dioxide Jan. 7, 2014
8603354 Lubricating oil composition for refrigerators Dec. 10, 2013
8585919 Refrigeration oil from gas-to-liquid derived and bio-derived diesters Nov. 19, 2013
8568608 Vapor compression cycle utilizing ionic liquid as compressor lubricant Oct. 29, 2013
8568609 Lubricating oil composition for refrigerating machine Oct. 29, 2013
8541351 Estolide compositions exhibiting high oxidative stability Sep. 24, 2013
8535557 Compositions and methods for reducing fire hazard of flammable refrigerants Sep. 17, 2013
8535556 Compositions comprising iodotrifluoromethane and stabilizers Sep. 17, 2013
8535555 Epoxide and fluorinated epoxide stabilizers for fluoroolefins Sep. 17, 2013
8529786 Phosphorus-containing stabilizers for fluoroolefins Sep. 10, 2013
8518295 Lubricants for refrigeration systems Aug. 27, 2013
8512591 Heat transfer compositions Aug. 20, 2013
8512592 Heat-dissipating compositions comprising estolide compounds Aug. 20, 2013
8492327 Azeotrope-like compositions of difluoromethane and trifluoroiodomethane Jul. 23, 2013
8491811 Lubricant for compression refrigerating machine and refrigerating apparatus using the same Jul. 23, 2013
8491810 Lubricant for compression refrigerating machine and refrigerating apparatus using the same Jul. 23, 2013
8480919 Lubricating oil composition for refrigerators Jul. 9, 2013
8465665 Refrigerating-machine oil composition, and compressor for refrigerating machine and refrigerating apparatus each employing the same Jun. 18, 2013
8460571 Lubricant composition for refrigerator and compressor using the same Jun. 11, 2013
8454853 Halogenated alkene heat transfer composition with improved oil return Jun. 4, 2013
8449789 Lubricant composition for refrigerating machines May. 28, 2013
8444874 Heat transfer methods using heat transfer compositions containing trans-1,3,3,3-tetrafluoropropene May. 21, 2013
8444873 Refrigerant composition May. 21, 2013
8431038 Reduced toxicity ethylene glycol-based antifreeze/heat transfer fluid concentrates and antifreeze/heat transfer fluids Apr. 30, 2013
8425796 Refrigerator oil Apr. 23, 2013
8419968 Lubricants for refrigeration systems Apr. 16, 2013
8409464 Lubricant for compression refrigerating machine and refrigerating apparatus using the same Apr. 2, 2013
8402778 Method for enhancing mineral oil miscibility and oil return Mar. 26, 2013
8398881 Refrigerating machine oil composition Mar. 19, 2013
8394287 Non-aqueous heat transfer fluid and use thereof Mar. 12, 2013
8388857 Stabilized hydrochlorofluoroolefins and hydrofluoroolefins Mar. 5, 2013
8383004 Amine stabilizers for fluoroolefins Feb. 26, 2013
8372301 Estolide compositions exhibiting high oxidative stability Feb. 12, 2013
8349213 Solvent compositions comprising unsaturated fluorinated hydrocarbons Jan. 8, 2013
8349206 Process for lubricating a refrigerator containing sliding parts made of an engineering plastic material Jan. 8, 2013
8349205 Lubricant composition for refrigerating machines Jan. 8, 2013
8333901 Heat transfer compositions Dec. 18, 2012
8324140 Refrigerating machine oil composition for carbon dioxide refrigerant Dec. 4, 2012
8318040 Refrigerator oil and working fluid composition for refrigerating machine Nov. 27, 2012
8293130 Refrigerator oil composition Oct. 23, 2012

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