Did You Know...
...that after Walter Hunt patented the safety pin in 1849, he sold the rights to it for $400?
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 7909978 | Method of making an integrated circuit including electrodeposition of metallic chromium A method of making an integrated circuit including a composition of matter for electrodepositing of chromium is disclosed. One embodiment provides a bath having a solution of a chromium salt in a substantially anhydrous organic solvent, to uses of certain chromium s... | 03/22/2011 |
| RE40386 | Chrome plated parts and chrome plating method Using a chrome plating bath containing organic sulfonic acid, plating is conducted by application of a pulse current to thereby form a crack-free lower chrome layer on a steel substrate. The lower chrome layer has a compressive residual stress of 100 MPa or more and... | 06/17/2008 |
| 7235167 | Method for the manufacture of corrosion resistant and decorative coatings and laminated systems for metal substrates A method for the preparation of corrosion-resistant and decorative coatings and layer systems for substrates of metals, preferably light metals. Also, method for the production of a coating and a layer system for substrates of metal, with which a decorative and corr... | 06/26/2007 |
| 7112349 | Method and treating hinge holder A method for treating a hinge holder includes the following steps: polishing a surface of the hinge holder; degreasing the hinge holder; cleaning the hinge holder; baking the hinge holder; cooling the hinge holder; screen-printing a part of the surface of the hinge ... | 09/26/2006 |
| 6997787 | Process for copper free chrome plating of a vehicle wheel surface A cutting tool having a hard tip is pressed with a uniform pressure against a surface of a vehicle wheel as the wheel is rotated to smooth and seal the surface. The smoothed and sealed wheel surface is then chrome plated with a process that includes applying a nicke... | 02/14/2006 |
| 6875330 | Process for coating workpieces with bearing metal A process is provided for coating metallic workpieces with a bearing material, wherein the workpiece first receives a hard chromium plating having a pearl or columnar structure type surface. A predominantly silver layer is then galvanically deposited, which fills in... | 04/05/2005 |
| 6852210 | Plating method and plating bath precursor used therefor To provide a plating method, which enables wide industrial use of the redox system electroless plating method having excellent characteristics, and a plating bath precursor which is preferable for the plating method. The plating method comprises a process oxidizing ... | 02/08/2005 |
| 6605369 | Surface-treated copper foil and method for producing the same The present invention is directed to provision of a surface-treated copper foil exhibiting a maximum effect of a silane coupling agent which is adsorbed onto the copper foil and is employed in order to enhance adhesion between the copper foil and a substr... | 08/12/2003 |
| 6589414 | Nitride layer forming methods Nitride layer formation includes a method wherein a material is electrodeposited on a substrate and converted, at least in part, to a layer comprising nitrogen and the electrodeposited material. The electrodepositing may occur substantially selective on a... | 07/08/2003 |
| 6562216 | Method of coating an internal surface of a weapon barrel A method of coating a metal surface, particularly an inner surface of a gun barrel, with a chromium layer, includes the following steps: electrolytically precipitating on the metal surface a plurality of partial chromium layers in a superposed relationshi... | 05/13/2003 |
| 6503642 | Hard-chrome plated layer In an electrodeposited hard-chromium coat, particularly for a piston ring, which is substantially formed of an electrolyte containing hexavalent chromium, wherein there are cracks in the coat and diamond particles are embedded in these cracks, the diamond... | 01/07/2003 |
| 6440230 | Nitride layer forming method Nitride layer formation includes a method where a material is electrodeposited on a substrate and converted, at least in part, to a layer comprising nitrogen and the electrodeposited material. The electrodepositing may occur substantially selective on a c... | 08/27/2002 |
| 6331241 | Method of making chromium-plated steel Chromium electroplating of steel strip, to make tin-free steel, is conducted in an electrolytic bath containing predominantly HCrO4- ions rather than the conventional [HCr2 O7 ]- or Cr2 O | 12/18/2001 |
| 6329071 | Chrome plated parts and chrome plating method Using a chrome plating bath containing organic sulfonic acid, plating is conducted by application of a pulse current to thereby form a crack-free lower chrome layer on a steel substrate. The lower chrome layer has a compressive residual stress of 100 MPa ... | 12/11/2001 |
| 6287445 | Coating particles in a centrifugal bed An apparatus and method are provided for coating particles in a rotating container. A cathode forms an electrically conductive inner surface of a side wall of the container. An anode is positioned relative to the cathode so as to permit both the cathode a... | 09/11/2001 |
| 6287446 | High porosity three-dimensional structures in chromium based alloys The invention relates to metallic products and a process for producing these which allows, despite the complexity of their structure, for them to be produced in refractory alloys based on chromium. The chromium is deposited by electrolysis, this being car... | 09/11/2001 |
| 6258241 | Process for electroplating metals A process for electroplating metal on a resistive substrate and the article of manufacture produced therefrom are disclosed. The metal layer is electroplated onto the resistive substrate in an electroplating bath having a polarization parameter .xi. less ... | 07/10/2001 |
| 6207033 | Process and apparatus for regeneration of chromium plating bath A process for the regeneration of a plating bath comprising trivalent chromium involves the use of platinum anode and a copper cathode wherein the anode to cathode ratio is greater than 2:1 upon passage of a charge having a current density of at least 10 ... | 03/27/2001 |
| 6200452 | Method and apparatus for the continuous chromium-plating of elongated members A method and an apparatus for the continuous chromium-plating of elongated members such as bars and the like: the bar to be plated is fed and rotated through at least one tubular shaped chromium-plating anode into which an electrolytic solution suitable f... | 03/13/2001 |
| 6146516 | Method and device for the repair and/or touch-up of small surface flaws in a press plate or an endless band for surface-embossing of plastic-coated wooden or laminated panels A method and a device are described for the repair and/or touch-up of small surface flaws in large press plates or endless bands of sheet metal, especially steel sheet, having a structured metal coating and a hard-chrome plating for surface-embossing plas... | 11/14/2000 |
| 6136456 | Grain oriented electrical steel sheet and method Grain oriented electrical steel sheet with a very low iron loss and a method for producing the same, wherein the surface of the iron substrate of the grain oriented electrical steel sheet is subjected to an enhancement treatment of crystal grain orientati... | 10/24/2000 |
| 5997711 | Control agent for reducing metal acid mist emissions from electrolytic cell operations Disclosed is a method for reducing metal acid or salt evolved from electrolytic baths housed in electrolytic tanks during electrolytic operations. This method involves covering all of the surface of the electrolytic bath with a layer of shredded foam (e.g... | 12/07/1999 |
| 5453175 | Protection of lead-containing anodes during chromium electroplating The present invention provides an improved method for electroplating chromium, using lead anodes, while achieving the advantages of using methanesulfonic acid without suffering the excessive anode-corrosion characteristics associated with that acid. Accor... | 09/26/1995 |
| 5433797 | Nanocrystalline metals A process for producing nanocrystalline materials, and in particular nanocrystalline nickel having an average grain size of less than about 11 nanometers and ternary and quaternary nickel-iron alloys, such as NiFeCr and NiFeCrMn alloys, having a grain siz... | 07/18/1995 |
| 5401379 | Chrome plating process This is to a process for chromium plating metal articles spray rinsing the metal article after it has been cleaned, acid treated, nickel plated, and chromium plated over rinse tanks which are empty except for the rinse collected therein. The rinse water i... | 03/28/1995 |
| 5207890 | Use of barium chromate as a sulfate scavenger in chromium electroplating baths A sulfate scavenger for chromium-plating baths consists of barium chromate or dichromate or mixtures of the two, added either directly to the bath or as part of a replenishment mixture with chromic acid.... | 05/04/1993 |
| 5137619 | Method of forming sliding surfaces A method of forming sliding surfaces, wherein a first plating layer with a relatively high level of hardness is formed by using a first plating liquid which is at a relatively low temperature; and a second plating layer with a hardness lower than that of ... | 08/11/1992 |
| 4894125 | Optically black pliable foils The present invention relates to a composite ductile metal foil having an optically black surface comprising a metal foil substrate having a thickness effective for shaping and reshaping; a black chromium surface applied to at least one side of said subst... | 01/16/1990 |
| 4865700 | Plating bath and process for making microporous chromium deposits A composition and method are disclosed for electroplating microporous chromium layers without the requirement that microparticles be present either in the chromium layer or in a sublayer. A composition used contains chromic acid and sulfoacetic acid and, ... | 09/12/1989 |
| 4755265 | Processes for the deposition or removal of metals Methods for depositing metals on or removing metals from substrates are provided which involve the use of electrolytic cells comprising an anode and cathode, sulfuric acid, and a chalcogen-containing compound soluble in said bath and having the empirical ... | 07/05/1988 |
| 4686017 | Electrolytic bath and methods of use An electrolytic bath, suitable for depositing a metal on or removing a metal from a substrate is provided which comprises an anode and cathode, an acid having a pKa of about 6 or less, and a chalcogen-containing compound soluble in said bath an... | 08/11/1987 |
| 4648947 | Chromium electroplating and bath therefor To a conventional chromium electroplating bath containing 450 g/l chromic acid CrO3 and 4.5 g/l sulphuric acid H2 SO4 are added 10 g/l of potassium perchlorate or potassium bromate or potassium iodate or mixtures thereof. ... | 03/10/1987 |
| 4632734 | Process for electrochemically or chemically coating niobium Niobium is electrochemically or chemically coated by subjecting work pieces made of niobium to a blast treatment with aluminium oxide, a treatment with an alkaline cyanide bath, a preliminary nickel deposition treatment using an acidic nickel chloride bat... | 12/30/1986 |
| 4617095 | Electrolytic post treatment of chromium substrates An improved process and aqueous electrolyte for imparting improved corrosion resistance to chromium substrates, and particularly nickel-plated substrates having a chromium plating thereover deposited from a trivalent chromium electrolyte. The post-treatin... | 10/14/1986 |
| 4602983 | Method of improving the distribution and brightness of chromium plate A process to improve the distribution and brightness of chromium plate by the addition to and maintenance in the bath of chlorine in various valence states, simultaneously, wherein equilibrium is maintained in the bath.... | 07/29/1986 |
| 4596760 | Electrodeposition of chromium on metal base lithographic sheet Electrodeposition of chromium of selectively constituted crystalline character and grain texture on metal substrates, such as aluminum or steel base lithographic sheet to provide improved and directly chromium plated aluminum or steel base lithographic sh... | 06/24/1986 |
| 4585530 | Process for forming adherent chromium electrodeposits from high energy efficient bath on ferrous metal substrates An improved activation solution is provided for forming adherent chromium electrodeposits on metal substrates from high energy efficient chromium baths. The solution is a substantially neutral alkali metal sulfate solution.... | 04/29/1986 |
| 4545867 | Process for the direct electrodeposition of gray chromium on aluminum base substrates such as aluminum base lithographic sheets Process for the direct electrodeposition of gray chromium of selectively constituted surface structure and grain texture on aluminum base substrates such as aluminum base lithographic sheet.... | 10/08/1985 |
| 4508790 | Tin free steel having an excellent weldability and its production method Tin free steel having three layers consisting of a bottom layer of metallic chromium, a middle layer of nickel-zinc alloy containing 10 to 90 weight percent of zinc and a top layer of hydrated chromium oxide on a steel base, and a method for the continuou... | 04/02/1985 |
| 4501647 | Method of electroplating The invention relates to a method of electroplating metal, primarily chromium, onto a workpiece connected as a cathode in a current circuit, the workpiece being fed through an electrolyte bath past the anode of the current circuit. Prior to moving the wor... | 02/26/1985 |
