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| Number | Title | Issue Date |
| 7887641 | Neutral or alkaline medium chain peroxycarboxylic acid compositions and methods employing them The present invention relates to medium chain peroxycarboxylic acid compositions of neutral or alkaline pH, to methods of making these compositions, and to methods employing these compositions. The methods include methods of cleaning. The compositions include cleani... | 02/15/2011 |
| 7727337 | Simplified method for cleaning production tools used for metal forming Chemical method of cleaning metallic residue from forming tools utilizing the application of a caustic material including base or mild acid to the tool for a short period of time. The caustic material is held in substantially fixed relation for a period of time to d... | 06/01/2010 |
| 7410544 | Method for cleaning electroless process tank A method for cleaning a metal plating tank is provided herein. In accordance with the method, the tank is exposed to a first acid (103), after which the tank is exposed to a second acid in the presence of a first oxidizing agent (107). ... | 08/12/2008 |
| 7402212 | Apparatus and method for cleaning a glass substrate before photoresist coating A method for cleaning a glass substrate before photoresist coating, which method can remove oxide compounds and organic residues from the surface of a metal layer of the glass substrate, comprises the steps of firstly providing an alkaline developer in a concentrati... | 07/22/2008 |
| 7399366 | Product and processes for preventing the occurrence of rust stains resulting from irrigation systems using water containing iron ions and for cleaning off rust stains resulting from using said irrigation systems Several products and processes for preventing the occurrence of rust stains resulting from irrigation systems using water having iron ions, such as well water, and for cleaning off rust stains resulting from the use of said irrigation systems are disclosed. In one e... | 07/15/2008 |
| 7377984 | Method for cleaning a photomask Disclosed herein is a method of cleaning a photomask, which prevents haze from being generated on a surface of the photomask during a photolithography process. The photomask is heat treated to remove residual ions on a surface thereof and to induce curing and oxidat... | 05/27/2008 |
| 7368019 | Method for preventing elution of lead and/or nickel from copper alloy piping material such as valve or pipe joint and copper alloy piping material, and fluid for use in cleaning piping material A technique is provided to precludes elution of the nickel by infallibly removing the nickel adhering to the inner surface of plumbing hardware, realize a treatment for efficient (treating temperature, treating duration, etc.) preclusion of both or either of lead an... | 05/06/2008 |
| 7354485 | Cleaning solution A method of cleaning a surface which comprises the step of applying an aqueous cleaning solution to the surface wherein the active cleaning ingredient of the aqueous solution consists essentially of a lignosulfonate. It has been found that lignosulfonate can functio... | 04/08/2008 |
| 7329322 | Exhaust apparatus, semiconductor device manufacturing system and method for manufacturing semiconductor device In an exhaust pipe, a rotating shaft takeoff connection is provided so as to support a rotating shaft for rotating a switching valve fixed thereon. The rotating shaft extends to the outside of the exhaust pipe and is provided with an introduction hole and branch hol... | 02/12/2008 |
| 7326635 | Method and apparatus for stripping photo-resist A method for stripping a photo-resist includes the steps of: (a) wet stripping a photo-resist off from a substrate; and (b) rinsing the substrate under high-speed conveyance using an aqua knife. A speed of the conveyance of the substrate is 0.2 m/s or higher. Becaus... | 02/05/2008 |
| 7275550 | Apparatus and method for cleaning and pressure testing tubular structures An apparatus and method for cleaning and pressure testing tube structures comprising a cleaning fluid supply pump and a pressurization pump alternately in fluid communication with a feed header having a feed header interface engageable to an end of at least one tube... | 10/02/2007 |
| 7270767 | Environmentally friendly de-icer and anti-icer compositions The invention relates to ice control formulations (deicing and anti-icing compositions) that have a tailorable BOD. The deicing compositions of the present invention comprise a) at least one first freezing point depressant (FPD) that is non-toxic, biodegradable and ... | 09/18/2007 |
| 7264681 | Cleaning apparatus and cleaning method A cleaning apparatus and a cleaning method wherein cleaning and drying can be carried out in the same cleaning apparatus without the risk of reverse contamination of the cleaned object after the drying process. The cleaning apparatus includes a supporting device for... | 09/04/2007 |
| 7264678 | Process for cleaning a surface A process is described wherein a surface, for example the exterior surface of a vehicle, is contacted with a cleaning composition capable of rendering the surface treated hydrophilic and then rinsed with purified rinse water. Preferably the process also involves a p... | 09/04/2007 |
| 7261780 | Ceramic susceptor and a method of cleaning the same An object of the present invention is to provide a ceramic susceptor for considerably reducing the count number of metal atoms on the surface of a semiconductor after the semiconductor is treated, specifically to 1×1010 atoms/cm2 or lower. It ... | 08/28/2007 |
| 7258750 | Process for removal of paint from plastic substrates A process for removing paint from a plastic substrate that typically includes immersing and optionally agitating the painted plastic substrate in a first chemical fluid, removing the substrate from the first chemical fluid, typically immersing and optionally agitati... | 08/21/2007 |
| 7252717 | Method and apparatus for cleaning machines A method of cleaning a lubrication system of a machine includes removing existing lubricant and circulating a cleaning fluid through the lubrication system. After the cleaning fluid has been removed, a neutralising fluid is circulated through the lubrication system,... | 08/07/2007 |
| 7250085 | Method of wet cleaning a surface, especially of a material of the silicon-germanium type Method of wet cleaning a surface of at least one material chosen from silicon, silicon-germanium alloys, A(III)/B(V)-type semiconductors and epitaxially grown crystalline materials, such as germanium, in which method the following successive steps are carried out: | 07/31/2007 |
| 7228865 | FRAM capacitor stack clean An embodiment of the invention is a method of cleaning a material stack 2 that has a hard mask top layer 8. The method involves cleaning the material stack 2 with a fluorine-based plasma etch. The method further involves rinsing the material sta... | 06/12/2007 |
| 7229506 | Process for pickling martensitic or ferritic stainless steel A process for pickling martensitic or ferritic stainless steel, preferably in the form of wires, tubes or rods, wherein the stainless steel is placed in contact with a pickling solution which has a temperature in the range 15 to 29° C. and contains 50 to 120 g/l of... | 06/12/2007 |
| 7217684 | Process and composition for cleaning medical instruments The invention relates to a method for cleaning a contaminated medical instrument including the step of immersing the instrument in a solution containing an enzyme based cleaning composition including a “hospital grade disinfectant”. Compositions useful for clean... | 05/15/2007 |
| 7204890 | Process for removing fine particulate soil from hard surfaces Many prior art processes for cleaning predominantly organic hard surfaces have been found to be considerably less effective in removing very fine particles on such surfaces than are the best cleaners for metallic surfaces. However, it has been found, and forms the b... | 04/17/2007 |
| 7205265 | Cleaning compositions and methods of use thereof A remover composition and method for removing resists from substrates containing nucleophilic amine and at least one solvent is described. Optionally, a chelating agent can also be included in the remover composition. The remover composition is especially suitable f... | 04/17/2007 |
| 7192489 | Method for polymer residue removal following metal etching A method for removing polymer containing residues from a semiconductor wafer including metal containing features including providing a semiconductor wafer having a process surface including metal containing features said process surface at least partially covered wi... | 03/20/2007 |
| 7186301 | Device and method for cleaning photomask Disclosed herein is a device and a method of cleaning a photomask, which prevents haze from being generated on a surface of the photomask during a photolithography process. The photomask is heat treated to remove residual ions on a surface thereof and to induce curi... | 03/06/2007 |
| 7179781 | Heterogeneous cleaning composition The present invention relates to heterogeneous cleaning compositions, methods employing them, and methods of making them. ... | 02/20/2007 |
| 7160396 | Washing method A washing method has a nonaqueous washing process of washing an object to be washed using a nonaqueous solution, an intermediate washing process of washing the object to be washed using a solution having solubility relative to both an aqueous solution and the nonaqu... | 01/09/2007 |
| 7156927 | Transition flow treatment process and apparatus A method is provided for treating an object. In this method, a treating chemical is introduced to a bath under conditions effective to at least partially envelop the object to be treated in eddy currents of the bath liquid, followed by introducing non-treating liqui... | 01/02/2007 |
| 7115171 | Method for removing engine deposits from turbine components and composition for use in same A method and cleaning composition for removing engine deposits from turbine components, in particular turbine disks and turbine shafts. This method comprises the following steps: (a) providing a turbine component having a surface with engine deposits thereon, wherei... | 10/03/2006 |
| 7094393 | Tooth bleaching compositions The present invention relates to improved dental compositions and methods for bleaching teeth. More specifically, this invention is directed towards hydrogen peroxide-containing compounds that are maintained at a substantially constant pH range of 6.0–10.0 during ... | 08/22/2006 |
| 7083572 | Therapeutic delivery systems Targeted therapeutic delivery systems comprising gas- or gaseous precursor-filled lipid microspheres comprising a therapeutic are described. Methods for employing such microspheres in therapeutic delivery applications are also provided. Targeted therapeutic d... | 08/01/2006 |
| 7067016 | Chemically assisted mechanical cleaning of MRAM structures A method for post-etch cleaning of a substrate with MRAM structures and MJT structures and materials is disclosed. The method includes inserting the substrate into a first brush box configured for double-sided mechanical cleaning of the substrate. A non-HF, copper c... | 06/27/2006 |
| 7052553 | Wet cleaning of electrostatic chucks A non-destructive and simple method for cleaning a new or used electrostatic chuck comprises a wet cleaning process, which removes contaminants deposited on a surface of the electrostatic chuck. ... | 05/30/2006 |
| 7052556 | Process for removal of paint from plastic substrates A process for removing paint from a plastic substrate that typically includes immersing and optionally agitating the painted plastic substrate in a first chemical fluid, removing the substrate from the first chemical fluid, typically immersing and optionally agitati... | 05/30/2006 |
| 6991685 | Low temperature cleaning The invention relates to a method of low temperature cleaning and applying an antimicrobial treatment to food and beverage plant equipment. In addition, the method includes carbon dioxide compatible chemistry. The method may be achieved through a multi-step method. | 01/31/2006 |
| 6953507 | Low temperature cleaning The invention relates to a method of low temperature cleaning and applying an antimicrobial treatment to food and beverage plant equipment. In addition, the method includes carbon dioxide compatible chemistry. The method may be achieved through a multi-step method. | 10/11/2005 |
| 6949219 | Method for disinfection of activated carbon through contact with peroxide containing materials A process is provided for the disinfection of activated carbon. The process comprises contacting contaminated carbon with peroxide-containing materials for a sufficient amount of time using enough peroxide to provide effective disinfection in a process that is relat... | 09/27/2005 |
| 6936112 | Heat exchanger cleaning process Disclosed is a novel process for cleaning and restoring the operating efficiency of organic liquid chemical exchangers in a safe and effective manner and in a very short period of time, without a need to disassemble the equipment and without the need to rinse contam... | 08/30/2005 |
| 6913685 | Method of modifying the surface of plastic substrate A plastic substrate is processed by a functional water obtained by electrolysis of water or functional water containing active oxygen or active hydrogen for a predetermined time period to selectively remove an alkali and/or halogen component in a surface layer of th... | 07/05/2005 |
| 6893509 | Method of cleaning vessels in a refinery Disclosed is a novel process for interior cleaning and by cleaning, removing noxious gas and/or restoring the operating efficiency of organically contaminated hydrocarbon processing equipment in a safe and effective manner and in a very short period of time, without... | 05/17/2005 |
