Bizarre Patents
A helium-filled sun shade for protecting individuals engaged in outdoor activities.
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 |
| 7431817 | Electroplating solution for gold-tin eutectic alloy The invention relates to an electrolyte used in connection with the deposition of a gold-tin alloy on an electroplatable substrate. This solution generally includes water; stannous and/or stannic tin ions, a complexing agent to render the stannous and/or stannic tin... | 10/07/2008 |
| 7407569 | Gold plating solution and gold plating method A gold plating solution comprising iodide ions, gold iodide complex ions and a non-aqueous solvent, which is less toxic and stable, while having a performance comparable to a cyanide type gold plating solution. The present invention further provides a gold plating s... | 08/05/2008 |
| 7279086 | Electroplating solution for alloys of gold with tin The invention relates to an electroplating solution for providing a deposit of an alloy of gold and tin. This solution includes an aqueous solvent in which gold is present in the form of a solution soluble cyanide complex and tin is present in the form of a solution... | 10/09/2007 |
| 7273539 | Method for regeneration of an electrolysis bath for the production of a compound I-III-VIin thin layers The invention relates to the regeneration of an electrolysis bath for the production of I-III-VIY compounds in thin layers, where y is approaching 2 and VI is an element including selenium, whereby selenium is regenerated in the form Se(IV) and/or with addi... | 09/25/2007 |
| 7208439 | Gold-based alloy nanoparticles for use in fuel cell catalysts A method is featured for fabricating Carbon-supported AuPt nanoparticle catalysts for fuel cells, and particularly fuel cells using methanol as the fuel. The method prepares AuPt-based fuel cell catalysts having a wide range of controllable Au:Pt ratios. The AuPt ca... | 04/24/2007 |
| 7087315 | Method for forming plating film A method for forming a plating film, comprising the steps of: applying a plating film onto an object to be plated at a first current density for a predetermined period in a plating bath having a cathode capable of varying current and an anode and; and maintaining th... | 08/08/2006 |
| 7022210 | Locally-distributed electrode and method of fabrication A locally distributed electrode is made by placing a conducting metallic oxide layer and a counter electrode in contact with a noble metal electroplating solution and applying a negative potential to the metallic oxide layer relative to the counter electrode, such t... | 04/04/2006 |
| 6814850 | Acid bath for electrodeposition of glossy gold and gold alloy layers and a gloss additive for same The invention provides an acid bath for the electrodeposition of glossy gold and gold alloy layers and a gloss additive for same. By using compounds of the formula I R—SOm—H (I) in which | 11/09/2004 |
| 6805786 | Precious alloyed metal solder plating process A relatively simple and inexpensive process for plating precious alloyed metals, such as AuSn, AuSnIn, AgSn, AuIn and AgIn. Anodes are formed from each of the metal components in the alloy and disposed in a conducting solution. The mass of each metal components is d... | 10/19/2004 |
| 6736954 | Plating bath and method for depositing a metal layer on a substrate A metal plating bath and method of plating a metal on a substrate where the metal plating bath contains heteroatom organic compounds that prevent or inhibit the consumption of metal plating bath additives. The metal plating bath additives improve the brightness of p... | 05/18/2004 |
| 6620304 | Bath system for galvanic deposition of metals A bath system for galvanic deposition of metals includes a solution containing at least one metal, especially a precious metal and/or precious metal alloy in the form of a water-soluble salt, at least one water-soluble protein material or amino acid and/o... | 09/16/2003 |
| 6576114 | Electroplating composition bath There is provided an electrodeposit free of cobalt, cadmium and nickel which contains 1.25 to 1.55% w/w iron, 1 to 2 ppm zirconium; and 97.7 to 98.2% gold and has a pale yellow color less than 3N on the NIHS scale. The invention also provides an electropl... | 06/10/2003 |
| 6544398 | Non-cyanide-type gold-tin alloy plating bath The present invention provides a non-cyanide-type gold-tin alloy plating bath comprising: (i) at least one water-soluble gold compound, (ii) at least one completing agent for gold, (iii) at least one water-soluble tin compound, and (iv) at least one compo... | 04/08/2003 |
| 6423202 | Process for making gold salt for use in electroplating A process for producing sodium gold sulfite in solution is described. The sodium gold sulfite solution is useful in gold electroplating baths, and can be used in applications which require pure, soft gold deposits.... | 07/23/2002 |
| 6344125 | Pattern-sensitive electrolytic metal plating A process for the electrolytic deposition of a metal, preferably copper or an alloy of copper, directly onto a barrier layer coated on a dielectric layer. The process is advantageous because it electrolytically deposits metal in a pattern that is either t... | 02/05/2002 |
| 6245208 | Codepositing of gold-tin alloys A relatively stable, weakly acidic, non-cyanide electroplating solution for deposition of Au--Sn alloys over a range of compositions. The solution consists of Au and Sn chloride salts, as well as ammonium citrate as a buffering agent and sodium sulphite a... | 06/12/2001 |
| 6183545 | Aqueous solutions for obtaining metals by reductive deposition An aqueous solution for the reductive deposition of metals comprising, besides water, (A) a phosphine of the general formula (1) ##STR1## in which R1, R2, and R3 denote lower alkyl groups, at least one of which being hydr... | 02/06/2001 |
| 6165342 | Cyanide-free electroplating bath for the deposition of gold and gold alloys Cyanide-free electroplating baths for deposition of gold and gold alloy coatings, using sulphurous gold complexes that are stable for a relatively long time, can be used with current density over 1 A/dm2 and are practically odor-free, are obtai... | 12/26/2000 |
| 5863400 | Electrochemical cells An electrochemical cell comprises a porous membrane (8) of electrically insulating composition, the membrane having pores (not illustrated) communicating from one side of the membrane to another, a working electrode (5) disposed on one side and a counter ... | 01/26/1999 |
| 5693427 | Article with protective coating thereon An article is coated with a multilayer coating comprising a semi-bright nickel layer deposited on the surface of the article, a bright nickel layer deposited on the bright nickel layer, a gold layer deposited on the semi-bright nickel layer, a ruthenium l... | 12/02/1997 |
| 5552031 | Palladium alloy plating compositions A palladium alloy plating composition comprising 4 to 20 g/l of palladium ion, 0.3 to 2.0 g/l of gold ion, 5 to 100 g/l of a conductive salt and 0.5 to 20 g/l of a complexing agent, and optionally 0.3 to 5 g/l of an alloying metal ion provides a plating w... | 09/03/1996 |
| 5277790 | Non-cyanide electroplating solution for gold or alloys thereof Disclosed are cyanide free electroplating solutions for gold or alloys thereof; said solutions comprising gold in the form of a soluble sulfite complex, an added source of sulfite and/or bisulfite ion and a supporting electrolyte; and said solutions furth... | 01/11/1994 |
| 5256275 | Electroplated gold-copper-silver alloys A solution for electroplating gold-copper-silver alloys. The solution comprises gold, copper and silver, each in the form of a cyanide complex. The solution further comprises a divalent sulfur compound capable of brightening and leveling the electroplated... | 10/26/1993 |
| 5169514 | Plating compositions and processes A gold or gold alloy plating composition comprises: a source of gold ions such as potassium gold (I) cyanide; optionally a source of alloying metal (e.g. nickel or cobalt) ions, for example as a sulphate; optionally a complexing agent for the alloying met... | 12/08/1992 |
| 5006208 | Galvanic gold alloying bath Yellow to rose-colored gold alloy coatings with copper and silver are obtained from stable galvanic baths with a pH of 8.5 to 11 containing, 1 to 15 g/liter gold as potassium gold (I) cyanide, 5 to 50 g/liter copper as potassium copper (I) cyanide, 0.05 t... | 04/09/1991 |
| 4911798 | Palladium alloy plating process A process is described for electroplating palladium and palladium alloys. The process involves the use of an alkyl hydroxyamine as complexing agent and is particularly good for palladium alloys such as palladium-nickel and palladium-cobalt.... | 03/27/1990 |
| 4717459 | Electrolytic gold plating solution An electrolytic gold plating solution including a soluble gold salt, a conductivity salt, and, in addition, a mixture of a lead compound and a complexing agent having the stability constant with lead of not less than 15 or a complex obtained from the lead... | 01/05/1988 |
| 4634505 | Process and bath for the electrolytic deposition of gold-tin alloy coatings To produce electrolytic deposition of glossy gold/tin alloys there are employed baths having a pH below 3 which contain 1 to 20 g/l gold in the form of tetracyanoaurate (III), 0.1 to 10 g/l tin, an acid and a conducting salt, whereby the tin is in the for... | 01/06/1987 |
| 4591415 | Plating baths and methods for electro-deposition of gold or gold alloys Aqueous acid gold or gold alloy baths containing a substituted pyridine carboxylic acid, pyridine thiol, quinoline carboxylic acid, quinoline thiol, or a derivative or mixtures thereof, as an additive and methods of using such baths.... | 05/27/1986 |
| 4536259 | Cathode having high durability and low hydrogen overvoltage and process for the production thereof A cathode having high durability and low hydrogen overvoltage comprising an electrode substrate and an alloy layer formed thereon, characterized in that said alloy layer is made of an alloy comprising Component X selected from the group consisting of nick... | 08/20/1985 |
| 4487664 | Method and electrolytic bath for the deposition of low carat bright gold-silver alloy coatings Bright, low carat gold-silver-alloy coatings which are ductile and have a thickness up to over 100 μm are obtained from an electrolytic bath containing 0.5 to 25 g/l of gold in the form of alkali gold cyanide, 0.25 to 15 g/l of silver in the form of alka... | 12/11/1984 |
| 4478691 | Silver plating procedure A silver electroplating procedure is disclosed which permits rapid and efficient plating and yields ductile, adherent silver films. The electroplating bath comprises silver complexed with an aliphatic polyamine compound with 3 to 20 carbon atoms. Particul... | 10/23/1984 |
| 4465564 | Gold plating bath containing tartrate and carbonate salts A bath for electrodepositing gold utilizes, as the essential ingredients of its electrolyte, salts providing the tartrate radical and the carbonate radical. The bath will have a pH value ranging from approximately neutral to highly alkaline, and adjustmen... | 08/14/1984 |
| 4391679 | Electrolytic bath and process for the deposition of gold alloy coatings In the electro industry, there are needed acid gold alloy baths which give glossy, ductile coatings, operate at high current densities, and contain little non-metallic impurities. This is attained by a bath based on potassium cyanoaurate (III) and an acid... | 07/05/1983 |
| 4385968 | Electroplating a simulated bright brass finish A simulated bright brass finish is produced by electroplating onto a metal base a gold-silver alloy coating having a thickness of the order of one ten-thousandth of an inch. The gold content of the coating is about five parts by weight for each four parts... | 05/31/1983 |
| 4379738 | Electroplating zinc An electroplating process is described for plating various metals and alloys in which certain organic substances are added to the plating solution. This permits high plating rates with excellent plating results, including smooth bright finishes, freedom f... | 04/12/1983 |
| 4377449 | Electrolytic silver plating A silver electroplating bath comprising heterocyclic organic additives such as lactones, lactams, cyclic sulfate esters, cyclic imides and cyclic oxazolinones, preferably phenolphthalein.... | 03/22/1983 |
| 4358350 | Strongly acid gold alloy bath For the production of abrasion resistant gold alloy coatings of low electrical contact resistance which remains constant there are needed electrolytic baths from which platinum metals can be codeposited. There are suited for this strongly acid electrolyti... | 11/09/1982 |
| 4358351 | Alkaline bath for the electrolytic deposition of low carat yellow colored gold alloy layers For the production of low carat rose to gold colored gold alloy coatings there are needed electrolytic baths containing soluble gold cyanide, soluble copper cyanide, potassium carbonate or potassium bicarbonate which produce corrosion resistant coatings o... | 11/09/1982 |
| 4309256 | Process for the galvanoplastic deposition of a gold alloy A method comprising the galvano-plastic deposition of a gold alloy on a cathode in an aqueous bath containing gold in the form of alkali metal and gold cyanide in the presence of alkali metal and copper cyanide, alkali metal and cadmium cyanide, a chelati... | 01/05/1982 |
