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| Number | Title | Issue Date |
| 7435301 | Cleaning solution of silicon germanium layer and cleaning method using the same Disclosed are a cleaning solution for preventing damage of a silicon germanium layer when cleaning a semiconductor device including the silicon germanium layer and a cleaning method using the same. The cleaning solution of a silicon germanium layer includes from abo... | 10/14/2008 |
| 7337788 | Compositions useful for cleaning solvent-based paint from paint delivery installations Uncured solvent-based paint may be flushed from a paint delivery installation using a substantially non-aqueous composition containing one or more organic solvents and a polymer having acid and/or amine functional groups. ... | 03/04/2008 |
| 7331354 | Cleaning of tray columns which have been used for rectificatively treating liquids comprising (meth)acrylic acid and/or esters thereof In process for cleaning tray columns which are used for the purposes of rectifiying liquids comprising (meth)acrylic compounds, a basic liquid is conveyed downward through the tray column and a gas is passed through the column in countercurrent to the basic liquid a... | 02/19/2008 |
| RE40050 | Method for cleaning and/or disinfecting food processing equipment A composition for a cleaning-in-place system is described. The composition has a halogen dioxide and a optionally hydroxide and does not require the use of a detergent to display excellent cleaning and disinfecting properties on processing equipment such as the equi... | 02/12/2008 |
| 7305998 | Mobile flushing unit and process In one embodiment of the invention, a method of cleaning a workpiece is disclosed. The method comprises providing a mobile flushing unit and servicing the workpiece as follows: a) connecting a flexible hose of the mobile flushing unit to one end of the workpiece and... | 12/11/2007 |
| 7287534 | Cleaning of apparatus in which meth(acrylic) acid-containing organic solvents have been treated and/or generated A process for cleaning apparatus in which (meth)acrylic acid-containing organic solvents have been treated and/or generated and contain fouling and/or polymer and residues of organic solvent, in which the apparatus contents are subjected to a steam distillation in t... | 10/30/2007 |
| 7252095 | Mobile flushing unit and process In one embodiment of the invention, a method of cleaning a workpiece is disclosed. The method comprises providing a mobile flushing unit and servicing the workpiece as follows: a) connecting a flexible hose of the mobile flushing unit to one end of the workpiece and... | 08/07/2007 |
| 7252720 | Removal of prion infectivity Prion infectivity adsorbed onto substrates (for example, chromatographic columns used to fractionate blood plasma) is removed by treatment with 2M sodium chloride. Optionally, the substrate is further washed with 0.1 M sodium hydroxide. ... | 08/07/2007 |
| 7219675 | Cleaning composition and method A novel cleaning composition comprises a dilutant, a wetting agent, a chelating agent, an alkaline builder, and a chlorine provider. The dilutant is preferably water. The wetting agent is alkoxylated alcohol. The chelating agent is an acrylic/maleic acid copolymer. ... | 05/22/2007 |
| 7198052 | Mobile flushing unit and process In one embodiment of the invention, a method of cleaning a workpiece is disclosed. The method comprises providing a mobile flushing unit and servicing the workpiece as follows: a) connecting a flexible hose of the mobile flushing unit to one end of the workpiece and... | 04/03/2007 |
| 7144177 | Method and device for delivery and confinement of surface cleaning composition A device dispenser for applying a thickened cleaning composition to a selected surface area that minimizes or eliminates any unintentional or excess application of the composition and/or minimizes or eliminates any spreading or wicking of the composition beyond the ... | 12/05/2006 |
| 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 |
| 7073519 | Facility parts cleaning solution for processing of (meth)acrylic acid and/or (meth)acrylic esters and cleaning method using said cleaning solution The present invention relates to a facility parts cleaning solution for the processing of (meth)acrylic acid and/or (meth)acrylic esters and a cleaning method using the cleaning solution. An aqueous cleaning composition comprising 5 to 50 wt % of at least one alkali... | 07/11/2006 |
| 7047985 | Removal of blockages from pipework using carbamate and nitric acid treatment steps The invention provides a method for the removal of contaminating materials from pipework, the contaminating materials comprising deposits on the pipework which cause a reduction in the effective internal diameter of the pipes and thereby effect a reduction in the ra... | 05/23/2006 |
| 7048803 | Method of dissolving scale A method of dissolving scale comprises contacting the scale with a solution of an alkali metal bisulfate. Another method of dissolving scale comprises contacting the scale with a solution of an alkali metal bisulfate and a strong mineral acid. A further method of di... | 05/23/2006 |
| 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 |
| 6986356 | Beverage flow line cleaner with safety indicator and method of use A method of cleaning potable liquid flow lines employing a high pH caustic cleaning solution or a low pH acid cleaning solution with a stable dye in sufficient concentration so as to have a visible color when the solution is further diluted. The cleaning solution is... | 01/17/2006 |
| 6982242 | Aqueous detergent composition and method of use An aqueous detergent composition is provided containing phosphoric acid or salt thereof, an organic phosphate surfactant, a nonionic surfactant, and water. The aqueous detergent composition may be employed to improved the adhesion of a coating to a substrate. Also p... | 01/03/2006 |
| 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 |
| 6916771 | Binary foaming drain cleaner A composition is provided comprising two liquids which are separately maintained prior to forming an admixture during delivery to a surface to be treated, whereupon the admixture generates a foam sufficient for cleaning efficacy and stability. A first liquid prefera... | 07/12/2005 |
| 6905276 | Method and device for delivery and confinement of surface cleaning composition A device for applying a thickened cleaning composition to a selected surface area that minimizes or eliminates any unintentional or excess application of the composition and/or minimizes or eliminates any spreading or wicking of the composition beyond the selected s... | 06/14/2005 |
| 6902628 | Method of cleaning a coated process chamber component In a method of cleaning and refurbishing a process chamber component having a metal coating having a surface thereon, the surface of the metal coating is immersed in an acidic solution to remove at least a portion of the process deposits from the surface. Thereafter... | 06/07/2005 |
| 6866048 | Method to decrease iron sulfide deposits in pipe lines This invention provides a method of treating a dry or processed fluid pipe line susceptible to the build-up of iron sulfide deposits by complexing the iron sulfide in the pipe lines. The method of the present invention introduces the composition on a continuous or a... | 03/15/2005 |
| 6863740 | Cleaning method of ceramic member Disclosed is a cleaning method of a ceramic member, which permits removing with a high accuracy the contaminants from a ceramic member contaminated with the contaminant. The cleaning method comprises the steps of processing the contaminated ceramic member with an al... | 03/08/2005 |
| 6830630 | Method of cleaning an internal combustion engine This invention provides fluid-dispensing devices attachable to an air-intake system of an internal combustion engine for introducing an engine cleaner composition into the air intake system. The invention also provides methods of cleaning internal combustion engines... | 12/14/2004 |
| 6830629 | Method for treating brass Brass articles having leachable lead are contacted with an aqueous caustic solution that contains a chelating agent. A brass article can optionally be post-treated by contacting it with an aqueous solution containing anazole. ... | 12/14/2004 |
| 6827090 | Process for removing deposits from water-carrying systems and devices for water supply Process for removing deposits from water-carrying systems and devices for water supply, or from their individual parts, in which the deposits are dissolved by means of an aqueous treatment solution and removed in dissolved form from the system or the device or their... | 12/07/2004 |
| 6817366 | Beverage flow line cleaner with safety indicator and method of use A method of cleaning potable liquid flow lines employing a high pH caustic cleaning solution or a low pH acid cleaning solution with a stable dye in sufficient concentration so as to have a visible color when the solution is further diluted. The cleaning solution is... | 11/16/2004 |
| 6776172 | Method of cleaning ultrapure water supply system A cleaning method is provided for an ultrapure water supply system having an ultrapure water production apparatus connected to a point of use of ultrapure water via a passage. In the cleaning method, a basic solution, for example, is circulated through the system to... | 08/17/2004 |
| 6761774 | Composition and method for the in situ removal scale from a substrate A composition and method for the removal of scale from a substrate are disclosed. The composition and method are more specifically utilized for the in situ removal of silicate-containing scale from interior surfaces of boilers and other heat exchange equipment. The ... | 07/13/2004 |
| 6745782 | Systems and methods for cleaning oxygen lines A portable apparatus cleans a passage such as an oxygen line by circulating a cleaning medium, such as a silicated alkaline cleaner such as OCC, through the passage. A rinse medium, such as distilled water, may than be circulated through the passage. The cleaning me... | 06/08/2004 |
| 6743299 | Method of cleaning infant feeding bottles A method of cleaning articles, such as infant feeding bottles is disclosed. The method provides for the use of alkali metal chloride, more particularly sodium chloride. The salt is deposited into the article to be cleaned, then water is added, and then the article i... | 06/01/2004 |
| 6716307 | Process and system for the removal of scale build-up A method to remove scale build-up in a vessel having at least one screen is described and involves placing a cover inside the vessel such that it is located beneath at least one screen to separate the screen from the rest of the vessel. The cover in the vessel forms... | 04/06/2004 |
| 6679274 | Clean-in-place method for cleaning solution delivery systemes/lines A method is taught for cleaning photographic chemistry product fouling, including a proteinaceous portion and a non-proteinaceous portion from a liquid delivery system. The method comprises the steps of displacing resident product solution in the piping w... | 01/20/2004 |
| 6663720 | Method of prevent an etcher from being eroded A method of prevention maintenance preventing parts of an etcher from being eroded is disclosed. First, a layer of hydrogen-free chemical compound is formed on surface of the parts of the etcher according to one embodiment of the present invention. Otherw... | 12/16/2003 |
| 6605155 | Remover for scale deposited on titanium material A descaling composition for use in removing scale deposited on a member made of titanium or a titanium alloy, the descaling composition containing a hydroxycarboxylic acid, a sulfamic acid and ammonium sulfate as effective components and effectively inhib... | 08/12/2003 |
| 6568406 | Method of cleaning plant parts for the preparation or processing of (meth)acrylic esters Plant parts which are used for the production or processing of (meth)acrylic esters are cleaned by (a) emptying the plant parts, (b) flushing the plant parts with aqueous 5 to 50% strength by weight alkali metal hydroxide solution, (c) removing the alkali meta... | 05/27/2003 |
| 6524397 | Method for removing an acidic deposit A method for removing an acidic deposit containing a sulfur compound, which comprises contacting the acidic deposit with an aqueous solution of an alkali metal carbonate and/or an alkali metal hydrogencarbonate to remove it.... | 02/25/2003 |
| 6514352 | Cleaning method using an oxidizing agent, chelating agent and fluorine compound The cleaning method described above is characterized by allowing a cleaning agent comprising an oxidizing agent, a chelating agent and fluorine compound to flow on a surface of a material to be treated at a high speed to thereby clean the above surface ac... | 02/04/2003 |
| 6475289 | Cleaning of internal passages of airfoils A chemical cleaning method for cleaning an internal passage of an engine-run gas turbine engine airfoil wherein the airfoil is immersed in an inorganic hydroxide medium at superambient temperature and atmospheric pressure for a short time to remove accumu... | 11/05/2002 |
