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![[Search a list of Patent Appplications for class 62]](../as.gif) Class 62 | REFRIGERATION |
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![[List of Patents for class 62 subclass 1]](../ps.gif) | 1 | CONSUMABLE PRODUCTS PRODUCED BY COOLING |
| | 3.1 | USING ELECTRICAL OR MAGNETIC EFFECT |
| | 3.2 |  Thermoelectric; e.g., peltier effect |
| | 3.3 |  Heat pump, selective heating and cooling |
| | 3.4 | Including dehumidifying and condensate handling |
| | 3.5 | Made with flexible heat exchanger material; e.g., blanket, wearing apparel, etc. |
| | 3.6 | Interior of enclosure cooled; e.g., refrigerator |
| | 3.61 |  Having vehicle feature; e.g., cooling cart, car, truck, boat, etc. |
| | 3.62 | Portable, having transporting feature; e.g., handle |
| | 3.63 | Icemaker |
| | 3.64 | Beverage dispenser |
| | 3.7 | Including specific circuitry or heat exchanger material |
| | 4 | CHEMICAL REACTION OR SOLIDS DISSOLVING |
| | 5 | VORTEX TUBE, E.G., RANQUE |
| | 6 | GAS COMPRESSION, HEAT REGENERATION AND EXPANSION, E.G., STIRLING CYCLE |
| | 7 | UTILIZING FUEL AS REFRIGERANT |
| | 600 | CRYOGENIC TREATMENT OF GAS OR GAS MIXTURE |
| | 601 | Solidification |
| | 606 | Liquefaction |
| | 607 | Hydrogen |
| | 608 | Helium |
| | 51.2 | Utilizing Joule-Thomson effect |
| | 611 | Natural gas |
| | 612 | Multicomponent cascade refrigeration |
| | 613 | Compression, expansion, and condensation |
| | 614 | Heat exchange with liquid cryogen |
| | 615 | Air |
| | 616 | Heat exchange with liquid cryogen |
| | 617 | Separation of gas mixture |
| | 618 | Natural gas |
| | 619 | Compression, expansion, and condensation |
| | 620 | Distillation |
| | 621 |  Flowline expansion engine |
| | 623 | External refrigeration circuit |
| | 624 | Membrane |
| | 625 | Liquid contact |
| | 626 | Solid sorption |
| | 627 | Dephlemation |
| | 628 | Automatic control |
| | 629 | Solidification |
| | 630 | Plural columns |
| | 632 | Liquid contact |
| | 636 | Sorption |
| | 637 | Solidification |
| | 639 | Helium |
| | 640 | Air |
| | 657 | Automatic control |
| | 45.1 | STORAGE OF SOLIDIFIED OR LIQUIFIED GAS (E.G., CRYOGEN) |
| | 46.1 | With sorbing or mixing |
| | 47.1 | With conservation of cryogen by reduction of vapor to liquid within storage receptacle |
| | 48.1 | With vapor discharged from storage receptacle |
| | 48.2 | And subsequently restored to receptacle as liquid |
| | 48.3 | And subsequently used to cool receptacle |
| | 48.4 | Discharge caused by ignition of combustible gas |
| | 49.1 | With measuring |
| | 50.1 | Liquified gas transferred as liquid |
| | 50.2 | With vaporizing of liquified gas downstream of storage |
| | 50.3 | Energy converted to work (e.g., used to drive prime mover) |
| | 50.4 | Operates valve which controls flow of liquid |
| | 50.5 | In phase separator |
| | 50.6 | Specific pump structure |
| | 50.7 | Specific conduit, valve, or coupling structure |
| | 51.1 | Including cryostat |
| | 52.1 | Spraying of cryogen |
| | 53.1 | Underground or underwater storage |
| | 53.2 | Storage in modified vehicle (e.g., ship, truck, etc.) |
| | 54.1 | Cryogen stored in both phases (e.g., as slush or gel) |
| | 54.2 | Controlled conversion of solidified gas to another phase |
| | 54.3 | Storing solidified gas |
| | 55.5 | LOW PRESSURE COLD TRAP PROCESS AND APPARATUS |
| | 56 | PROCESSES |
| | 57 | Suspending in upwardly directed current |
| | 532 | Fractionally solidifying a constituent and separating the same |
| | 533 | Including direct contact with added refrigerant |
| | 534 | Liquid refrigerant converted to vapor phase during cooling |
| | 535 | Spent refrigerant vapor used in direct contact to melt solidified component or heat product liquid |
| | 536 | Refrigerant remains liquid during cooling |
| | 537 | Utilizing a constituent of the original mixture or solution as refrigerant |
| | 538 | Solidifying or purifying in a pulsed column or using sonic vibration |
