Did You Know...
...that one person who claimed to be the inventor of the television is Russian emigre Vladimir Zworykin? In 1929 David Sarnoff, founder of RCA, asked Zworykin what it would take to develop TV for commercial use. He said: a year and a half and $100,000. In reality, it took 20 years and $50 million! Before his death in 1982 at the age of 92, Zworykin said of his invention: "The technique is wonderful. It is beyond my expectations. But the programs! I would never let my children even come close to this thing."
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| Number | Title | Issue Date |
| 6417068 | Semiconductor device navigation using laser scribing According to one aspect of the disclosure, the present invention provides methods and arrangements for milling the substrate of a semiconductor device and exposing a selected region in the substrate. A laser is directed at a selected area of the back side... | 07/09/2002 |
| 4880507 | Tin, lead or tin/lead alloy electrolytes for high speed electroplating An electrolyte, system and process for depositing tin, lead or tin/lead alloys upon a substrate by high speed electroplating, which includes a basis solution of an alkyl or alkylol sulfonic acid; and at least one of a solution soluble tin compound or a so... | 11/14/1989 |
| 4792383 | Polymer compositions and alkaline zinc electroplating baths and processes Compositions are described which are useful particularly in improving the electrodeposition of zinc from aqueous alkaline plating baths. In one embodiment, the new composition comprises the reaction product of (A-1) at least one nitrogen-containing heterocycli... | 12/20/1988 |
| 4730022 | Polymer compositions and alkaline zinc electroplating baths Compositions are described which are useful particularly in improving the electrodeposition of zinc from aqueous alkaline plating baths. In one embodiment, the new composition comprises a polymeric composition prepared by the process which comprises the s... | 03/08/1988 |
| 4717458 | Zinc and zinc alloy electrolyte and process An aqueous bath suitable for electrodepositing zinc and alloys of zinc including zinc-nickel, zinc-cobalt, zinc-nickel-cobalt, zinc-iron, zinc-iron-nickel, zinc-iron-cobalt, and zinc-nickel-cobalt-iron containing a brightening amount of an AABB-type polya... | 01/05/1988 |
| 4488942 | Zinc and zinc alloy electroplating bath and process An aqueous bath suitable for electrodepositing zinc and alloys of zinc including zinc-nickel, zinc-cobalt, zinc-nickel-cobalt, zinc-iron, zinc-iron-nickel, and zinc-iron-cobalt containing a brightening amount of an AB-type polyamide brightener in an amoun... | 12/18/1984 |
| 4397717 | Alkaline zinc electroplating bath with or without cyanide content A bath for electoplating zinc containing in aqueous solution a zinc salt, an alkali metal hydroxide, optionally, an aromatic aldehyde or ketone and other usual additives and, if desired, an alkali metal cyanide and further, as a brightener, one or more re... | 08/09/1983 |
| 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 |
| 4252619 | Brightener for zinc electroplating solutions and process An aqueous acidic or alkaline zinc electroplating solution and process for producing a bright, adherent and ductile zinc deposit on conductive substrates incorporating a primary brightening agent comprising a compound or mixture of compounds represented b... | 02/24/1981 |
| 4229267 | Alkaline bright zinc plating and additive therefor An alkaline, electroplating bath for bright zinc plating comprising a source of zinc ions and a bath soluble polymer containing repeating tertiaryaminoalkyl acrylamide groups or quaternary salts thereof. The bath is capable of producing bright, fine grain... | 10/21/1980 |
| 4188271 | Alkaline zinc electroplating baths and additive compositions therefor A composition is described which provides an improvement in the electrodeposition of zinc from aqueous alkaline plating baths and particularly from alkaline plating baths containing little or no cyanide. The new composition comprises the reaction product ... | 02/12/1980 |
| 4178217 | Zinc electroplating bath A zinc electroplating bath which contains polyalkylenepolyamines which possess alkyl and sulfoalkyl groups.... | 12/11/1979 |
| 4177131 | Method for obtaining bright zinc and cadmium electroplates using carboxamide additives The addition of an inner salt of a quaternized pyridine carboxamide, preferably 1-benzyl pyridinium-3-carboxamide to aqueous alkaline electroplating baths containing zinc and cadmium ions results in smooth, bright deposits of these metals. High plating ef... | 12/04/1979 |
| 4169771 | Ductile bright zinc electroplating bath and process and additive therefor An improved solution and process for depositing bright zinc coatings employing an aqueous solution containing zinc ions and an effective amount of a brightening agent comprising a bath soluble cationic alkylated condensation polymer obtained by alkylating... | 10/02/1979 |
| 4146442 | Zinc electroplating baths and process Aqueous plating baths for the electrodeposition of a zinc coating on a substrate are disclosed and comprise zinc ions to which has been added an amount, effective to provide a level and bright zinc electrodeposit, of a polymeric nitrogen-containing compou... | 03/27/1979 |
| 4113583 | Method for brightening the electrodeposits of zinc from alkaline zinc electroplating baths A method for depositing bright zinc from zinc electrodeposition baths in which a compound prepared by reacting imidazole and/or at least one imidazole derivative with at least one organic compound which quaternizes nitrogen in said imidazole in the presen... | 09/12/1978 |
| 4081336 | Alkaline bright zinc plating and additive therefor An alkaline, electroplating bath for bright zinc plating comprising a heterocyclic nitrogen-containing compound such as, for example, nicotinic acid, which has been alkylated with a condensate of a difunctional halohydrin such as, for example, epichlorohy... | 03/28/1978 |
| 4062739 | Electroplating zinc or cadmium and additive composition therefor Zinc and cadmium are electrodeposited in the presence of the more or less complex mixture present after reacting (a) a compound containing a pyridine nucleus, especially a 3-substituted pyridine and (b) a compound containing an oxirane ring such as an alk... | 12/13/1977 |
| 4046648 | Polyamine additives in alkaline zinc electroplating Alkaline zinc electroplating, from baths with small amounts of cyanide or cyanide-free, is enhanced by the use of certain water-soluble polyamines as brighteners. These are the reaction products of first condensing an alkanolamine with an epihalohydrin, a... | 09/06/1977 |
| 4045306 | Electroplating zinc and bath therefor An alkaline - cyanide free or substantially cyanide-free bath is provided for the electrodeposition of a bright levelled zinc coating; said bath containing a zinc salt, alkali hydroxide and conventional additives and a reaction product of unsaturated nitr... | 08/30/1977 |
| 4022676 | Alkaline bright zinc electroplating bath Brightening agents for alkaline zincate electroplating baths; either cyanide or non-cyanide-containing; are disclosed. The brighteners are polymers characterized by recurrent units of an alkylene amine wherein nitrogen atoms are bound to an aliphatic sulf... | 05/10/1977 |
| 3974045 | Method for electroplating bright zinc A brightener additive for zinc electroplating baths, which comprises: a water-soluble polymer prepared by the reaction of an epihalohydrin with a nitrogen heterocyclic compound such as the compounds of imidazole, pyrrole, cyclic amine of the formula: ... | 08/10/1976 |
| 3972789 | Alkaline bright zinc plating and additive composition therefore An alkaline, electroplating bath for bright zinc plating containing a composition comprising a condensate of a heterocyclic compound and an epihalohydrin, for example a condensate of nicotinamide and epichlorohydrin or a corresponding quaternary salt of s... | 08/03/1976 |
| 3969219 | Zinc or cadmium electroplating brightener compositions and process Electroplating brightener compositions for addition to either alkaline or low, intermediate or high cyanide zinc or cadmium electroplating baths comprising an aqueous solution of corn syrup or glucose, vanillin, veratraldehyde, sodium lignin sulfonate, so... | 07/13/1976 |
| 3954575 | Zinc electroplating A method for depositing bright zinc from zinc electrodeposition baths in which an aqueous solution of a low molecular weight polymer prepared by the reaction of at least one epihalohydrin with at least one nitrogen heterocyclic compound is added to the zi... | 05/04/1976 |
