Did You Know...
...that two musicians were responsible for the invention of color print film? Fascinated by photography, Leopold Godowsky and Leopold Mannes worked together to produce an easy-to-use, practical color film. They worked full time as music teachers and gave concerts while experimenting during their off hours in Mannes' kitchen. Their success earned them full-time, well-paying jobs at Kodak and their efforts resulted in Kodachrome film, which was introduced in 1935.
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| Number | Title | Issue Date |
| 7049539 | Method for surface treating a die by electron beam irradiation and a die treated thereby Method for surface treating a die made of metal in which a low energy, pulsed electron beam, which does not scatter, performs a treatment over a wide area due to presence of anode plasma in a chamber in which the electron beam is formed to smooth and gloss a surface... | 05/23/2006 |
| 6896516 | Removal partial denture free of palatal bar or lingual bar A removable partial denture that does not have a palatal or lingual bar, strap or plate connecting both sides of an arch of the partial denture. In addition to the rests and/or clasps, the partial denture is held in position by the shape of the linguoplate, which co... | 05/24/2005 |
| 6863531 | Surface modification process on metal dentures, products produced thereby, and the incorporated system thereof Metal and/or partial metal dentures having a surface modified by a pulsed electron beam system. The system includes an explosive emission cathode, an accelerating gap formed by the cathode and plasma anode, and an electron collector where the metal and/or partial me... | 03/08/2005 |
| 6705866 | Denture having uneven patterns on a mucosa-fronted surface thereof and its manufacturing method A denture having a base capable of giving a user a feeling of stability related to the fitting of the denture in the proper oral cavity position. The denture is made by a process comprising the steps of: applying a pattern model onto a shaping surface of a master mo... | 03/16/2004 |
| 6116070 | Superplastically-formed prosthetic components, and equipment for same Described are unique prosthesis systems including superplastically-formed prosthetic elements, and methods and an apparatus for forming such elements. A preferred dental prosthesis system includes at least two osseointegrated fixtures, abutments attached ... | 09/12/2000 |
| 6103383 | High tungsten, silicon-aluminum dental alloy A new nickel-chromium alloy having high rigidity, castability, corrosion and oxidation resistance and easy workability is disclosed. The alloy comprises from about 45 to 81% nickel by weight, from about 13 to 25% chromium by weight, from about 3 to 15% tu... | 08/15/2000 |
| 6048205 | Biocompatible dental restoration system using layers of high strength ceramic, gold, and porcelain The present invention is a multilayer dental system for the production of restorations which incorporates a high strength bridging ceramic core, a layer of biocompatible metal for aesthetics and encasing the abutment and a conventional porcelain top layer... | 04/11/2000 |
| 5695714 | Gold-palladium alloys for dental materials Gold-palladium alloys with a high gold content for dental applications should, for reasons of biocompatibility, not contain any toxically dubious components. For particularly corrosion-resistant and biocompatible Type 4 alloys, tin is needed as the only b... | 12/09/1997 |
| 5462437 | Dental alloys for composite and porcelain overlays A dental alloy is provided which is compatible with a wide variety of composites and porcelain compositions. The alloy has a melting range of between about 870° C. and 1230° C. and a coefficient of thermal expansion of between 15.5×10-6 and ... | 10/31/1995 |
| 5423680 | Palladium, gallium and copper-free alloy having high thermal expansion coefficient A dental alloy is provided which is free of palladium, gallium and copper and which is compatible with a wide variety of composites and porcelain compositions. The alloy has a melting range of between about 870° C. and 1230° C. and a coefficient of ther... | 06/13/1995 |
| 5246368 | Method for manufacture and fitting of partial dental appliance A process for fabricating a partial denture or bridge appliance securable to an abutment tooth or abutment teeth having crowns or copings thereon, the partial denture or bridge appliance in snap fit secure relationship with the crown or coping on the abut... | 09/21/1993 |
| 5221207 | Yellow dental alloy with a high gold content A yellow dental alloy is disclosed with high gold content for castings and ceramic veneers with an adjusted thermal expansion coefficient that does not produce any undesirable discoloration of the ceramic veneers and that is very hard. It contains 70 to 8... | 06/22/1993 |
| 5217685 | Abutment base alloy for jawbone mounted dental implants A hard, zinc-free gold alloy for an abutment base used with jawbone mounted dental implants is prepared containing approximately by weight 64 percent gold, 22 percent palladium, 9 percent silver, 4.5 percent platinum, and 0.5 percent iridium.... | 06/08/1993 |
| 5174954 | Palladium alloys for dental implant restorations The present invention relates to alloys containing about 50-90% palladium, 0-37% gold, 0-3% platinum, 0-35% silver, 0.5-8% gallium, 0-8% tin, and up to 0.2% of a grain refiner selected from the group consisting of iridium, rhenium and ruthenium, or mixtur... | 12/29/1992 |
| 5004420 | Dental bridge and manner for preparation A dental bridge assembly comprises a bridge component cast from a gold alloy having a melting point not greater than 1050° C. and a plurality of sockets of titanium or a titanium alloy cast in place in the bridge component, secured mechanically to the br... | 04/02/1991 |
| 4943483 | Palladium alloy containing gold, silver, gallium, germanium and/or lithium and dental restorations utilizing same Dental restorations are made of a high palladium alloy which consists essentially of, on a weight basis, 70-82 percent palladium; 5-8 percent gold; 6.5-8 weight percent silver; 5-9 percent gallium; from 4 to 8 weight percent of a surface oxide producing m... | 07/24/1990 |
| 4863514 | Material for facing denture There is provided a material for dentures having metallic matrix, containing 0.5-30 volume % glass having a softening temperature above 650° C. and/or ceramic particles having a maximum grain size of 40 μm.... | 09/05/1989 |
| 4828495 | Sintered alloy dental prosthetic devices and method This invention relates to biomechanical devices comprising a liquid sinterable metallic alloy, characterized by a multiphase, composite microstructure of isolated spherical grains approximately 50 microns in diameter distributed in an essentially nonporou... | 05/09/1989 |
| 4824373 | Swaged metal denture base A denture base of pressure-formed, superplastic alloy plate, and a method of making a metal denture base, includes providing a superplastic alloy plate and a female die having a finishing surface, and pressure-forming the alloy plate on the finishing surf... | 04/25/1989 |
| 4776795 | Process for making metal artificial tooth parts The process for making metal artificial tooth parts consists in that an impression of the tooth or jaw to be treated is prepared using an electrically non-conductive material, the inner wall of said impression is coated with a heated low-melting alloy and... | 10/11/1988 |
| 4689197 | Process for the production of a metallic denture A denture with a metallic microstructure and with low shrinkage and porosity is produced by metallurgical sintering by providing a multimodal size distribution of coarse and fine fractions of metal powder, optionally also with glass or ceramic powder, con... | 08/25/1987 |
| 4615705 | Antimicrobial surgical implants Surgical implants, especially endoprosthetic orthopaedic implants and sutures, are rendered antimicrobial by the presence of a bioerodible metallic silver component, especially a surface coating, which provides in vivo a sustained release of silver ions i... | 10/07/1986 |
| 4579529 | Manufacturing system for fixed dental prosthesis The present invention relates to a fixed dental prosthesis having a non-metallic central nucleus, a metallic tube-shaped frame surrounding the nucleus, and an external coating surrounding the frame. The nucleus and coating comprise the same material and a... | 04/01/1986 |
| 4575339 | Prosthesis substructure Prosthesis substructure for ceramic coating is configured for reduced metallic body volume, increased vertical loading strength and increased surface bonding area for ceramic bond. This is accomplished by configuring the substructure with generally triang... | 03/11/1986 |
| 4562882 | Method of making a dental prosthesis A method of making a dental prosthesis includes providing an upper or a lower impression of the oral cavity of a patient; and filling such impression with a castable mixture comprising (1) a ceramic composition containing a major proportion of magnesia an... | 01/07/1986 |
| 4552779 | Process for preparing a cast metal surface structure for bonding to a tooth structure and material used therewith A process for preparing a cast metal surface such that it is usable for bonding to a tooth structure. A water soluble adhesive medium is placed on a stone cast of a tooth or teeth. A mixture of soluble and non-soluble particles are then placed onto the ad... | 11/12/1985 |
| 4539177 | Dental alloys for porcelain-fused-to-metal restorations A dental alloy for use in porcelain-fused-to-metal restorations including palladium, cobalt, gallium, gold, aluminum, copper, zinc and ruthenium or rhenium. The cobalt controls the coefficient of thermal expansion of the alloy to permit the use of the all... | 09/03/1985 |
| 4461618 | Process for producing a dental restoration A process for producing a dental restoration wherein a bonding agent is disclosed for bonding dental porcelain to a nickel-containing metal core. The bonding agent is aluminum powder and an inert organic liquid carrier.... | 07/24/1984 |
| 4439153 | Bio-functional denture This disclosure relates to a denture having a porous metal gauze as a denture plate formed of plural wire nets with a straight wire used as warps and wefts. The nets are laid one over another in layers in the manner that the meshes thereof are staggered e... | 03/27/1984 |
| 4426404 | Preparation of an intermediate layer between a high-melting dental metal alloy and dental porcelain A process for producing and intermediate layer between a high-melting dental alloy and a dental porcelain which comprises applying to said high-melting dental metal alloy a composition comprising. (a) at least a metal or a metal alloy which is thermally stable... | 01/17/1984 |
| 4412970 | Palladium based dental alloys A dental alloy for use in porcelain-fused-to-metal restorations including palladium, cobalt, indium, tin, aluminum and rhenium. The aluminum protects the alloy during torch melting and during the porcelain firing process through the formation of a protect... | 11/01/1983 |
| 4413094 | Perfluoroelastomer blends Co-vulcanizable fluoroelastomer blends of tetrafluoroethylene/perfluoro-(methylvinyl-ether)/cure-site monomer terpolymer and hexafluoropropylene oxide/cure-site monomer dipolymer.... | 11/01/1983 |
| 4369068 | Gold containing preparation for coating metallic parts Gold-containing preparations which improve the adhesiveness, guarantee an esthetic appearance, and should make possible a saving in gold consumption are needed for the production of intermediate layers for the facings of fired on alloys in the dental art ... | 01/18/1983 |
| 4351069 | Prosthetic devices having sintered thermoplastic coatings with a porosity gradient Coated Prosthetic devices useful in the medical and dental fields, such as dental implants, intramedullary nails, and total hip prostheses, are provided having a porosity or density gradient in the sintered plastic coating. The higher porosity is at the o... | 09/28/1982 |
| 4326889 | Dental composition from gold particles, terpineol and ethyl cellulose Essentially spherical gold particles are mixed with an evaporatable or combustible paste-forming material, for example terpineol and ethylcellulose, the gold being, by weight, 75% to 95%, spherical, and having a diameter of between 0.8 to 1.2 μm, with a ... | 04/27/1982 |
| 4267133 | Manufacture of denture base A denture base is made of a photocuring resin compound by a process which includes polymerizing methacrylate and/or acrylate with the addition of a light sensitizer or a filler. Subsequent to a proper alignment of artificial teeth, the photo-curing or -ha... | 05/12/1981 |
| 4261744 | Palladium-based dental alloy containing indium and tin A non-discoloring palladium-based alloy, free of silver or gold, suitable for fusion to dental porcelain compositions consists essentially of 75-85% by weight of Pd, 5-10% by weight of In, 5-10.5% by weight of Sn, up to 7.5% by weight of Co, Cr or Ni and ... | 04/14/1981 |
| 4249943 | Non-precious ceramic alloy An alloy composition for dental use containing, by weight, aluminum 0-3.0%, cobalt 0-20.0%, chromium 10.0-20.0%, manganese 0-1.5%, molybdenum 6.0-18.0%, nickel 58.5-77.0% and silicon 0-2.0%. The alloy retains the corrosion resistance properties found in n... | 02/10/1981 |
| 4243412 | Dental alloy A nickel base dental alloy having the following composition:... | 01/06/1981 |
| 4225696 | Prosthetic denture prepared from polyurethane elastomer A hard, substantially non-hydrophilic polyurethane elastomer denture is disclosed in which the elastomer possesses a hardness of not less than about Shore D60 and preferably not greater than about Shore D100. The polyurethane elastomer is prepared from a ... | 09/30/1980 |
