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Class Information
Number: 134/2
Name: Cleaning and liquid contact with solids > Processes > For metallic, siliceous, or calcareous basework, including chemical bleaching, oxidation or reduction
Description: Processes in which the work has a metallic, siliceous or calcareous base, and is subjected to a bleaching, oxidizing or reducing action, usually to remove color, dirt, or impurities or other foreign matter from the base.

Sub-classes under this class:

Class Number Class Name Patents
134/3 Including acidic agent 1,484

Patents under this class:

Patent Number Title Of Patent Date Issued
8323415 Fast recycling process for ruthenium, gold and titanium coatings from hydrophilic PEM fuel cell bipolar plates Dec. 4, 2012
8303797 Cleaning system and cleaning method Nov. 6, 2012
8298341 Removal of metal contaminant deposited on quartz member of vertical heat processing apparatus Oct. 30, 2012
8293020 Method of megasonic cleaning of an object Oct. 23, 2012
8277675 Method of damaged low-k dielectric film layer removal Oct. 2, 2012
8277564 Method for removing a hardened photoresist Oct. 2, 2012
8268085 Methods for forming metal gate transistors Sep. 18, 2012
8266820 Substrate processing method, and program storage medium therefor Sep. 18, 2012
8263540 Detergent compositions with combinations of acrylic and maleic acid homopolymers and/or salts thereof for aluminum protection Sep. 11, 2012
8262769 Method of detinning Sn plating layer on Cu-based material Sep. 11, 2012
8252119 Microelectronic substrate cleaning systems with polyelectrolyte and associated methods Aug. 28, 2012
8246757 Pyrolysis methods and ovens therefor Aug. 21, 2012
8241428 Liquid acidic hard surface cleaning composition Aug. 14, 2012
8236091 Fluid separation method and fluid separation apparatus Aug. 7, 2012
8231736 Wet clean process for recovery of anodized chamber parts Jul. 31, 2012
8231733 Aqueous stripping and cleaning composition Jul. 31, 2012
8231720 Moldwash formulation Jul. 31, 2012
8226773 Method and composition for cleaning wafers Jul. 24, 2012
8216384 Combinatorial approach to the development of cleaning formulations for wet removal of high dose implant photoresist Jul. 10, 2012
8216383 Methods and composition for cleaning a heat transfer system having an aluminum component Jul. 10, 2012
8211239 Method of cleaning beer kegs and other brewery processing equipment Jul. 3, 2012
8206488 Fluoride ion cleaning method Jun. 26, 2012
8202370 Method for removing acidic deposit Jun. 19, 2012
8197605 Use of alkanesulfonic acid as agent for cleaning cement, mortar and concrete Jun. 12, 2012
8192556 Pickling or brightening/passivating solution and process for steel and stainless steel Jun. 5, 2012
8192554 Method of descaling metallic devices Jun. 5, 2012
8192550 Use of an aqueous neutral cleaning solution and method for removing rouging from stainless steel surfaces Jun. 5, 2012
8172951 Method of cleaning with an aqueous composition containing a semiconductor May. 8, 2012
8163101 Method of cleaning contaminated surfaces Apr. 24, 2012
8153057 Method and device for preventing corrosion in hot water systems Apr. 10, 2012
8133854 Liquid acidic hard surface cleaning composition Mar. 13, 2012
8133327 Substrate processing method, storage medium and substrate processing apparatus Mar. 13, 2012
8133325 Dry cleaning method for plasma processing apparatus Mar. 13, 2012
8128754 Ferric pickling of silicon steel Mar. 6, 2012
8123866 Wafer manufacturing method and device Feb. 28, 2012
8122899 Apparatus and method for treating substrate Feb. 28, 2012
8118945 Substrate processing method and substrate processing apparatus Feb. 21, 2012
8097092 Method of cleaning and after treatment of optical surfaces in an irradiation unit Jan. 17, 2012
8083858 Method and system for cleaning an artillery gun barrel Dec. 27, 2011
8080110 Method and system to stabilize and preserve iron artifacts Dec. 20, 2011
8076655 Method of cleaning optical surfaces of an irradiation unit in a two-step process Dec. 13, 2011
8075704 Method for the removal of airborne molecular contaminants using oxygen and/or water gas mixtures Dec. 13, 2011
8075701 Processes for reconditioning multi-component electrodes Dec. 13, 2011
8075697 Particle removal method and composition Dec. 13, 2011
8075696 Method of recovering heat transfer in reactor and regenerator effluent coolers Dec. 13, 2011
8070882 Method for the wet-chemical treatment of a semiconductor wafer Dec. 6, 2011
8063006 Aqueous cleaning composition for semiconductor copper processing Nov. 22, 2011
8062430 Process for cleaning filters Nov. 22, 2011
8062429 Methods of cleaning semiconductor devices at the back end of line using amidoxime compositions Nov. 22, 2011
8057604 Method and device for descaling metal strip Nov. 15, 2011

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