Patents by Inventor Jan Orlowski
Jan Orlowski has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 4380432Abstract: Adhesives and methods are provided for fixed prosthesis by bonding a pontic to abutment teeth. The adhesive is preferably a methacrylate based resin adhesive comprising 2.5-30% of an elastomer which is a polymer of a substituted or unsubstituted butadiene monomer. A preferred etchant for preparing the abutment for adhesive bonding is 2-15% HCl. The prosthesis technique does not irreversibly affect the abutment teeth. The preferred adhesive may also be used for immobilizing injured or periodontically affected teeth or for stabilizing teeth in order to retain the results of orthodontic treatment.Type: GrantFiled: September 3, 1980Date of Patent: April 19, 1983Assignees: Scientific Pharmaceuticals, Sankin Industries, Ltd.Inventors: Jan A. Orlowski, David V. Butler
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Patent number: 4379695Abstract: Dimethacrylates are provided having the following chemical structure: ##STR1## wherein n represents a number of 2 to 8;R.sub.1 and R.sub.2 are the same or different and are hydrogen or groups of the formula: ##STR2## where R.sub.3 is an aliphatic, aromatic or cycloaliphatic group having 1 to 14 carbon atoms. These compounds are useful in dental material which cures to form polymers having high mechanical strength, low water sorption, resistance to staining, good color stability when exposed to short-wave radiation (e.g., sunlight) and good chemical resistance to the oral environment. Also provided are a method for polymerizing these compounds in situ on teeth and a tooth comprising polymers of these compounds.Type: GrantFiled: May 27, 1981Date of Patent: April 12, 1983Assignee: Scientific Pharmaceuticals, Inc.Inventors: Jan A. Orlowski, David V. Butler, Patrick D. Kidd
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Patent number: 4362888Abstract: Dimethacrylates are provided having the following chemical structure: ##STR1## where ##STR2##is a saturated, 6 membered, monocyclic, hydrocarbyl ring system;R.sub.1, R.sub.2 and R.sub.3 are the same or different and are hydrogen or alkyl or alkoxy groups having 1 to 12 carbon atoms; andR.sub.4 and R.sub.5 are the same or different and are hydrogen or groups of the formula: ##STR3## where R.sub.6 is an aliphatic, aromatic or cycloaliphatic group having 1 to 14 carbon atoms, provided that at least one of the groups R.sub.4 and R.sub.5 is a group of the formula: ##STR4## These compounds are useful in dental material which cures to form polymers having high mechanical strength, low water sorption, resistance to staining, good color stability when exposed to short-wave radiation (e.g., sunlight) and good chemical resistance to the oral environment. Also provided are a method for polymerizing this compound in situ on teeth and a tooth comprising a polymer of this compound.Type: GrantFiled: September 15, 1980Date of Patent: December 7, 1982Assignee: Scientific Pharmaceuticals, Inc.Inventors: Jan A. Orlowski, David V. Butler, Patrick D. Kidd
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Patent number: 4360693Abstract: Dimethacrylates are provided having the following chemical structure: ##STR1## where ##STR2## is a saturated, 6 membered, monocyclic, hydrocarbyl ring system; and R.sub.1, R.sub.2 and R.sub.3 are the same or different and are hydrogen or alkyl or alkoxy groups having 1 to 12 carbon atoms. These compounds are useful in dental material which cures to form polymes having high mechanical strength, low water sorption, resistance to staining, good color stability when exposed to short-wave radiation (e.g., sunlight) and good chemical resistance to the oral environment. Also provided are a method for polymerizing this compound in situ on teeth and a tooth comprising a polymer of this compound.Type: GrantFiled: April 7, 1981Date of Patent: November 23, 1982Assignee: Scientific Pharmaceuticals, Inc.Inventor: Jan A. Orlowski
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Patent number: 4337349Abstract: Dimethacrylates are provided having the following chemical structure: ##STR1## where n represents a number of 2 to 8;R.sub.1 and R.sub.2 are the same or different and are hydrogen or groups of the formula: ##STR2## where R.sub.3 is an aliphatic, aromatic or cycloaliphatic group having 1 to 14 carbon atoms. These compounds are useful in dental material which cures to form polymers having high mechanical strength, low water sorption, resistance to staining, good color stability when exposed to short-wave radiation (e.g., sunlight) and good chemical resistance to the oral environment. Also provided are a method for polymerizing these compounds in situ on teeth and a tooth comprising polymers of these compounds.Type: GrantFiled: June 2, 1980Date of Patent: June 29, 1982Assignee: Scientific Pharmaceuticals, Inc.Inventors: Jan A. Orlowski, David V. Butler, Patrick D. Kidd
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Patent number: 4304893Abstract: Dimethacrylates are provided having the following chemical structure: ##STR1## where ##STR2## is a saturated, 6 membered, monocyclic, hydrocarbyl ring system; and R.sub.1, R.sub.2 and R.sub.3 are the same or different and are hydrogen or alkyl or alkoxy groups having 1 to 12 carbon atoms.These compounds are useful in dental material which cures to form polymers having high mechanical strength, low water sorption, resistance to staining, good color stability when exposed to short-wave radiation (e.g., sunlight) and good chemical resistance to the oral environment. Also provided are a method for polymerizing this compound in situ on teeth and a tooth comprising a polymer of this compound.Type: GrantFiled: June 11, 1980Date of Patent: December 8, 1981Assignee: Scientific Pharmaceuticals, Inc.Inventor: Jan A. Orlowski
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Patent number: 4229431Abstract: Self-curing artificial fingernail compositions containing crosslinking monomers, monoacrylates and suitable initiators and accelerators, and methods of polymerizing and applying same.Type: GrantFiled: February 5, 1979Date of Patent: October 21, 1980Assignee: Lee PharmaceuticalsInventors: Henry L. Lee, Jr., Jan A. Orlowski
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Patent number: 4228062Abstract: Disclosed is a rapid setting adhesive of low toxicity having high bond strength to a variety of metals and plastics, and particularly to stainless steel, polycarbonate plastics and tooth enamel. The composition consists essentially of (A) a resin which is formed from an ester of methacrylic acid with a monoalcohol containing at least one epoxy group and (B) a filler which may be any of a plurality of finely divided materials that are insoluble in ambient fluids or a mixture of such fillers, parts (A) and (B) being present in a weight ratio such that the initial mixture at ambient temperature and pressure is a viscous liquid or paste. Also included are minor amounts of a conventional polymerization catalyst and a conventional polymerization accelerator. Preferably parts (A) and (B) are packaged separately, with polymerization catalyst included in only one package.Type: GrantFiled: May 2, 1978Date of Patent: October 14, 1980Assignee: Lee PharmaceuticalsInventors: Henry L. Lee, Jr., Jan A. Orlowski
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Patent number: 4221698Abstract: Dental restorative compositions comprise self-curing systems of monomer containing two or more polymerizable ethylenically unsaturated groups of different respective reactivities, and thus of different curing rates, and other materials such as fillers, inhibitors, curing agents, and the like. The polymerizable groups may be selected from the group consisting of two or more vinyl, allyl, acryl, methacryl, and styryl groups.Type: GrantFiled: May 18, 1978Date of Patent: September 9, 1980Assignee: Lee PharmaceuticalsInventors: Henry L. Lee, Jr., Jan A. Orlowski
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Patent number: 4220582Abstract: Dental restorative compositions of improved X-ray opacity are described. These compositions comprise from 30% to 85% by weight of the composition of a finely divided inorganic filler and from 15% to 70% by weight of the composition of a liquid resin binder. The filler comprises at least 60% by weight of the filler of a ground barium glass that has a barium oxide (BaO) content greater than about 22.5% by weight of the glass. By appropriate selection of the binder, the composition may cure in a single stage of curing, or it may set in two stages, to provide a period of time during which it can be carved to a desired shape.Type: GrantFiled: January 3, 1979Date of Patent: September 2, 1980Assignee: Lee PharmaceuticalsInventors: Jan A. Orlowski, Patrick D. Kidd, David V. Butler
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Patent number: 4172323Abstract: The adhesive bonding of a pontic tooth to the two adjacent, natural abutment teeth is improved, particularly in resistance to shearing forces, by an improved adhesive bonding system. In this system, adhesive is applied to the previously prepared surfaces of the abutment teeth, and a thin screen or perforated film or foil is embedded in the adhesive on each tooth surface, conformed to the shape of the prepared surface, and penetrated by the adhesive. In one preferred embodiment, the adhesive wets and penetrates the surface of the artificial pontic that is being secured in place, the previously prepared abutment tooth surfaces, and the screens or films or foils, so that upon curing, an integral mass results that is mechanically strong, particularly in resistance to shear. The system is useful with natural or artificial teeth, can be used to install fixed bridges, and is useful for splinting.Type: GrantFiled: May 6, 1977Date of Patent: October 30, 1979Assignee: Lee PharmaceuticalsInventor: Jan A. Orlowski
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Patent number: 4158543Abstract: Article and process for cleaning grain or suede leather surfaces. The process comprises rubbing over the surface to be cleaned a semi-solid article formed from a substantially uniform mixture of a rubber-type material, a liquid plasticizer/solvent for this material, and inorganic, finely divided particulate filler. An optional preferred ingredient is a thickener to reduce cold flow. Another optional preferred ingredient is a finely divided pigment to impart a uniform shade to the article. The article is formulated to be sufficiently yielding to avoid damage to the soiled surface of the material that is to be cleaned.Type: GrantFiled: February 3, 1978Date of Patent: June 19, 1979Inventor: Jan A. Orlowski
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Patent number: 4150485Abstract: Low viscosity dental restorative coating compositions for application to natural and to artificial teeth, useful in covering surface imperfections including stains, gumline erosion, small pits, and the like. They are designed to impart to restored teeth the overall appearance of original teeth, particularly with respect to natural vitality and fluorescense, while effectively masking stains and themselves resisting discoloration from staining agents and upon aging. They are formulated to bond well, look natural, and wear well. As ready to use, a coating composition will contain from about 30% to about 70% filler by weight of the composition, in a resinous, curable liquid vehicle. The composition is formulated to be sufficiently fluid so that it can be applied to a dental surface easily and conveniently, as by brushing on a previous prepared surface, and it will flow to a featheredge.Type: GrantFiled: September 13, 1977Date of Patent: April 24, 1979Inventors: Henry L. Lee, Jr., Jan A. Orlowski, Patrick D. Kidd
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Patent number: 4104333Abstract: Self-curing artificial fingernail compositions containing crosslinking monomers, monoacrylates and suitable initiators and accelerators, and methods of polymerizing and applying same.Type: GrantFiled: November 29, 1977Date of Patent: August 1, 1978Assignee: Lee PharmaceuticalsInventors: Henry L. Lee, Jr., Jan A. Orlowski
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Patent number: 4058442Abstract: Photopolymerizable composition of matter for the production of formed-in-place artificial nails.Type: GrantFiled: September 15, 1975Date of Patent: November 15, 1977Assignee: Lee PharmaceuticalsInventors: Henry L. Lee, Jr., Jan A. Orlowski, Carl H. Fromm
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Patent number: 4032504Abstract: A novel X-ray opaque filler for synthetic resinous compositions including dental and medical restorative materials is disclosed.Type: GrantFiled: December 19, 1974Date of Patent: June 28, 1977Assignee: Lee PharmaceuticalsInventors: Henry L. Lee, Jr., Jan A. Orlowski
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Patent number: 4001483Abstract: Dental compositions for sealing margins between tooth structures and amalgam restorations therein, the compositions comprising (a) an alkylene glycol dimethacrylate and/or its oligomer, (b) a polymerization initiator, (c) a polymerization accelerator and (d) a secondary monomer additive; and process for sealing the margins with the compositions.Type: GrantFiled: October 22, 1974Date of Patent: January 4, 1977Inventors: Henry L. Lee, Jr., Jan A. Orlowski
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Patent number: 3969821Abstract: An orthodontic bracket is disclosed having one or more projections which extend vertically from the posterior surface of the bracket body. The projections are used for producing a glue-line having a predetermined thickness measured between the posterior surface of the bracket body and the front surface of the tooth to which the bracket is directly bonded by glueing. The thickness of the glue-line is equal to the vertical displacement of the one or more projections from the posterior surface of the bracket base. The ends of the one or more projections touch the front surface of the tooth when the bracket is directly bonded to the tooth.A process is also disclosed for attaching the orthodontic bracket of the present invention to the tooth of a patient undergoing orthodontic treatment.Type: GrantFiled: January 22, 1975Date of Patent: July 20, 1976Inventors: Henry L. Lee, Jr., Jan A. Orlowski
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Patent number: 3969499Abstract: A composition of matter comprising a polymeric reaction product of a hydroxy terminated butadiene prepolymer having an average molecular weight of about 400 to 25,000 and containing 1 to 3 hydroxyl groups per molecule and a polyisocyanate reactant present in an amount to provide from 100 to 1200 percent excess isocyanate groups to hydroxyl groups or active hydrogen sites, and from 1 to 70 percent by weight of a compound containing a fluoride ion. In another, and preferred aspect of the invention, the polyisocyanate reactant is present in an amount to provide from 1.5 to 2.7 isocyanate groups for each hydroxyl group or active hydrogen site, the composition containing an aromatic polyol, such as N,N-bis(2-hydroxypropyl) aniline, and wherein the aromatic polyol comprises at least 42 percent but not more than 60 percent of the hydroxyl components. The compositions are especially useful as dental fissure sealants and as means of applying a fluoride to a tooth surface.Type: GrantFiled: November 19, 1974Date of Patent: July 13, 1976Assignee: Lee PharmaceuticalsInventors: Henry L. Lee, Jr., Jan A. Orlowski