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Class Information
Number: 219/121.36
Name: Electric heating > Metal heating (e.g., resistance heating) > By arc > Using plasma
Description: Subject matter wherein the working arc is an ionized gas plasma.










Sub-classes under this class:

Class Number Class Name Patents
219/121.54 Control systems 392
219/121.39 Cutting 269
219/121.37 Melting 113
219/121.59 Methods 529
219/121.48 Plasma torch structure 722
219/121.47 Spray coating 282
219/121.45 Welding 157
219/121.58 With work holder 129


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

Patent Number Title Of Patent Date Issued
8683841 Apparatus and method to cut HVAC round and spiral ductwork and all attaching structures Apr. 1, 2014
8667914 Waste treatment Mar. 11, 2014
8664560 Method and apparatus for abatement of reaction products from a vacuum processing chamber Mar. 4, 2014
8653405 Method for operating a vacuum plasma process system Feb. 18, 2014
8653404 In-liquid plasma electrode, in-liquid plasma generating apparatus and in-liquid plasma generating method Feb. 18, 2014
8642917 Highly ordered structure pyrolitic graphite or carbon-carbon composite cathodes for plasma generation in carbon containing gases Feb. 4, 2014
8622735 Boost devices and methods of using them Jan. 7, 2014
8618435 Ablative plasma gun Dec. 31, 2013
8610024 Apparatus and method for producing a lunar agglutinate simulant Dec. 17, 2013
8604379 Plasma source with integral blade and method for removing materials from substrates Dec. 10, 2013
8598486 Method for treating return ores using plasma Dec. 3, 2013
8597470 Separation and extraction of bitumen from tar sands Dec. 3, 2013
8591821 Combustion flame-plasma hybrid reactor systems, and chemical reactant sources Nov. 26, 2013
8552333 Systems, methods, and apparatus for preventing electromigration between plasma gun electrodes Oct. 8, 2013
8550328 Introduction of nanoparticles Oct. 8, 2013
8492674 Methods and apparatus for ex situ seasoning of electronic device manufacturing process components Jul. 23, 2013
8487536 Dense plasma focus device and method Jul. 16, 2013
8471170 Methods and apparatus for the production of group IV nanoparticles in a flow-through plasma reactor Jun. 25, 2013
8450635 Method and apparatus for inducing DC voltage on wafer-facing electrode May. 28, 2013
8443741 Waste treatment process and apparatus May. 21, 2013
8438983 Waste treatment process and apparatus May. 14, 2013
8426033 High strength nickel alloy welds through precipitation hardening Apr. 23, 2013
8399794 Atmospheric pressure plasma, generating method, plasma processing method and component mounting method using same, and device using these methods Mar. 19, 2013
8399795 Enhancing plasma surface modification using high intensity and high power ultrasonic acoustic waves Mar. 19, 2013
8373084 Plasma cutter having high power density Feb. 12, 2013
8367967 Method and apparatus for repairing thermal barrier coatings Feb. 5, 2013
8362388 Multi-gas mixer and device for supplying gas mixture to plasma torch Jan. 29, 2013
8357873 Plasma whirl reactor apparatus and methods of use Jan. 22, 2013
8324523 Plasma whirl reactor apparatus and methods of use Dec. 4, 2012
8309878 Universal input power supply utilizing parallel power modules Nov. 13, 2012
8304684 Plasma arc torch rotational assembly Nov. 6, 2012
8288677 Coupling device for a water vapor cutting device Oct. 16, 2012
8263896 Automated determination of plasma torch operating mode Sep. 11, 2012
8253057 System and method for plasma generation Aug. 28, 2012
8242404 Systems and methods for plasma jets Aug. 14, 2012
8236237 Method and apparatus for destruction of biological and chemical agents Aug. 7, 2012
8232500 Plasma torch assembly Jul. 31, 2012
8217299 Arc recovery without over-voltage for plasma chamber power supplies using a shunt switch Jul. 10, 2012
8207470 Apparatus for generating remote plasma Jun. 26, 2012
8197765 Waste gas purification apparatus Jun. 12, 2012
8199790 Reactor vessel for plasma gasification Jun. 12, 2012
8159233 Passive capacitively-coupled electrostatic (CCE) probe arrangement for detecting in-situ arcing events in a plasma processing chamber Apr. 17, 2012
8153924 Plasma cutter having thermal model for component protection Apr. 10, 2012
8148661 Highly ordered structure pyrolitic graphite or carbon-carbon composite cathodes for plasma generation in carbon containing gases Apr. 3, 2012
8137341 Methods and apparatus for plasma incision of tissue Mar. 20, 2012
8138444 Plasma processing apparatus Mar. 20, 2012
8129653 Plasma supply device Mar. 6, 2012
8129654 DC arc plasmatron and method of using the same Mar. 6, 2012
8129656 Method for producing thermal energy Mar. 6, 2012
8109218 Waste treatment process and apparatus Feb. 7, 2012

1 2 3 4 5 6 7 8 9 10










 
 
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