Patents by Inventor Byoung Suh

Byoung Suh 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).

  • Patent number: 9237988
    Abstract: The present application relates to dental adhesive and restoration compositions comprising benzalkonium chloride, having the general structure C6H5CH2N(CH3)2—R—Cl, and salts thereof in a range between approximately 0.01% and approximately 10% by weight in dental primer, dental adhesive, dental resin, and other dental polymeric compositions or in dental solutions. In particular, it has been shown that dental compositions comprising benzalkonium chloride result in the inhibition of the hydrolytic activity of MMP on the dentin adhesive layer, thereby reducing the degradation of bond strength between a resulting dental restoration and the underlying dental tissue.
    Type: Grant
    Filed: February 24, 2011
    Date of Patent: January 19, 2016
    Assignee: Bisco, Inc.
    Inventor: Byoung Suh
  • Publication number: 20120046386
    Abstract: The present application relates to a polymerizable dental primer/adhesive system comprising a primer component having a relatively hydrophilic monomer component in an amount that renders the system relatively hydrophilic before polymerization of the system and capable of penetrating a prepared dental surface such as etched tooth dentin or enamel, and a multi-functional cross-linking agent in an amount that renders the system relatively hydrophobic after polymerization. A polymerizable hydrophobic monomer component is also included in the primer. The inclusion of said hydrophobic polymerizable monomer and said multi-functional cross-linking agent improves the long term stability or durability of the polymerized primer system to the dental restoration and to the tooth, dentin, enamel and other dental surfaces. An additional hydrophobic resin can also be employed with the primer adhesive system.
    Type: Application
    Filed: July 27, 2011
    Publication date: February 23, 2012
    Inventors: Byoung Suh, Rui Yin, Michelle Schiltz-Taing, Adriana Pigozzo Manso
  • Patent number: 8106110
    Abstract: The present application relates to a dental primer adhesive system that is capable of being used as either a one-step or two-step self-etch dental primer and is compatible with self-cure composites and dual-cure composites with reduced permeability.
    Type: Grant
    Filed: January 29, 2008
    Date of Patent: January 31, 2012
    Assignee: Bisco, Inc.
    Inventors: Byoung Suh, Rui Yin, Michelle Schiltz-Taing
  • Patent number: 8026297
    Abstract: The present application relates to a polymerizable dental primer/adhesive system comprising a primer component having a relatively hydrophilic monomer component in an amount that renders the system relatively hydrophilic before polymerization of the system and capable of penetrating a prepared dental surface such as etched tooth dentin or enamel, and a multi-functional cross-linking agent in an amount that renders the system relatively hydrophobic after polymerization. A polymerizable hydrophobic monomer component is also included in the primer. The inclusion of said hydrophobic polymerizable monomer and said multi-functional cross-linking agent improves the long term stability or durability of the polymerized primer system to the dental restoration and to the tooth, dentin, enamel and other dental surfaces. An additional hydrophobic resin can also be employed with the primer adhesive system.
    Type: Grant
    Filed: January 29, 2008
    Date of Patent: September 27, 2011
    Assignee: Bisco, Inc.
    Inventors: Byoung Suh, Rui Yin, Michelle Schiltz-Taing, Adriana Pigozzo Manso
  • Publication number: 20110207844
    Abstract: The present application relates to dental adhesive and restoration compositions comprising benzalkonium chloride, having the general structure C6H5CH2N(CH3)2—R—Cl, and salts thereof in a range between approximately 0.01% and approximately 10% by weight in dental primer, dental adhesive, dental resin, and other dental polymeric compositions or in dental solutions. In particular, it has been shown that dental compositions comprising benzalkonium chloride result in the inhibition of the hydrolytic activity of MMP on the dentin adhesive layer, thereby reducing the degradation of bond strength between a resulting dental restoration and the underlying dental tissue.
    Type: Application
    Filed: February 24, 2011
    Publication date: August 25, 2011
    Inventor: Byoung Suh
  • Publication number: 20080318190
    Abstract: Dental pulp healing lining or capping compositions and methods of using the composition to treat an exposed, nearly exposed, or breached pulp chamber are disclosed herein. Embodiments include dental pulp healing lining or capping compositions comprising a resin portion having at least one hydrophilic monomer component and at least one hydrophobic monomer component and a calcareous material operable to both provide a biological seal and maintain an alkaline pH for extended periods. Further, light curable compositions are disclosed, allowing for improved curing properties, and allowing permanent restorations to be adhered to the sealed tooth without waiting a significant amount of time for the Portland cement portion to cure.
    Type: Application
    Filed: February 20, 2008
    Publication date: December 25, 2008
    Applicant: Bisco, Inc.
    Inventors: Byoung Suh, Rui Yin, Mark Cannon, David E. Martin
  • Publication number: 20080182922
    Abstract: The present application relates to a dental primer adhesive system that is capable of being used as either a one-step or two-step self-etch dental primer and is compatible with self-cure composites and dual-cure composites with reduced permeability.
    Type: Application
    Filed: January 29, 2008
    Publication date: July 31, 2008
    Applicant: Bisco, Inc.
    Inventors: Byoung Suh, Rui Yin, Michelle Schiltz-Taing
  • Publication number: 20080182921
    Abstract: The present application relates to a polymerizable dental primer/adhesive system comprising a primer component having a relatively hydrophilic monomer component in an amount that renders the system relatively hydrophilic before polymerization of the system and capable of penetrating a prepared dental surface such as etched tooth dentin or enamel, and a multi-functional cross-linking agent in an amount that renders the system relatively hydrophobic after polymerization. A polymerizable hydrophobic monomer component is also included in the primer. The inclusion of said hydrophobic polymerizable monomer and said multi-functional cross-linking agent improves the long term stability or durability of the polymerized primer system to the dental restoration and to the tooth, dentin, enamel and other dental surfaces. An additional hydrophobic resin can also be employed with the primer adhesive system.
    Type: Application
    Filed: January 29, 2008
    Publication date: July 31, 2008
    Applicant: Bisco, Inc.
    Inventors: Byoung Suh, Rui Yin, Michelle Schiltz-Taing, Adriana Pigozzo Manso
  • Publication number: 20070066072
    Abstract: Disclosed is a method of manufacturing a semiconductor device using a dual damascene process. A first etching barrier film, an insulation film and a second etching barrier film are formed in sequence on a semiconductor substrate having a first metallic wiring therein and are then selectively etched to form a contact hole. A trench is formed by etching first the etching barrier film and insulation film adjacent to the contact hole. After the contact hole is wet-cleaned, the first etching barrier film is etched and (optionally) a reflection-preventing film and a second metallic wiring are formed. Thus, before forming a metallic wiring, photoresist residues and polymer inside the contact hole can be efficiently removed, dissimilarly to conventional methods which may cause defective deposition of metallic materials due to photoresist residues and polymer that may remain inside the contact hole.
    Type: Application
    Filed: September 20, 2006
    Publication date: March 22, 2007
    Inventor: Byoung Suh
  • Publication number: 20070003904
    Abstract: Dental composite restorations reinforced with one or more fiber structures are disclosed. The fiber structures can have a wide array of shapes and sizes, including rods with circular cross sections, rods with “U” shaped cross sections, rods with “I” shaped cross sections, and fiber mesh structures. The reinforced dental composite restorations are created by incrementally layering and curing composite materials onto the fiber structures. The resulting restorations have significantly improved flexural strength as compared to conventionally prepared composite restoration materials.
    Type: Application
    Filed: December 27, 2005
    Publication date: January 4, 2007
    Inventors: Steven Duray, Byoung Suh
  • Publication number: 20060188835
    Abstract: Multi-wavelength dental light curing guns or devices are disclosed. The multi-wavelength dental light curing guns or devices include a user handle attached to a light source support. A first light source is mounted on the light source support and is operable to project a first light beam of a first wavelength along a first light path, the first wavelength being capable of initiating polymerization of a first photopolymerizable dental composition. A second light source is mounted on the light source support and is operable to emit a second light beam of a second wavelength along a second light path, the second wavelength being capable of initiating polymerization of a second photopolymerizable dental composition different than the first dental composition, wherein the first light path does not intersect the second light path.
    Type: Application
    Filed: February 22, 2005
    Publication date: August 24, 2006
    Inventors: Rich Nagel, Byoung Suh
  • Publication number: 20050288387
    Abstract: Dental composition and methods of use are provided, the compositions comprising a multiacrylate compound, an initiator, and an alcohol, wherein no significant storage odor is detected after storage for a significant period of time.
    Type: Application
    Filed: August 10, 2005
    Publication date: December 29, 2005
    Inventors: Li Feng, Byoung Suh
  • Publication number: 20050154081
    Abstract: Polymerizable compositions are described containing colored polymerization indicators which confer a visible color on the unpolymerized compositions. Upon polymerization, the compositions exhibit reduced or eliminated color. The compositions can also change their opacity during polymerization. The compositions provide easy visual differentiation between the unpolymerized compositions and substrates on which the compositions are placed. The compositions are useful in clinical and laboratory applications such as those involving teeth, dental implants, orthodontic materials, artificial teeth and bones.
    Type: Application
    Filed: January 9, 2004
    Publication date: July 14, 2005
    Applicant: BISCO, INC.
    Inventors: Rui YIN, Byoung SUH, Oanh MAI, Keith HAYES, Louis SHARP
  • Patent number: 5348988
    Abstract: Novel unsaturated carboxy esters for use in dentistry as bonding agents are produced by a reaction of unsaturated alcohols with cyclic acid dianhydrides. The dianhydrides which can be used in the invention are in general symmetrical compounds having an aromatic nucleus substituted with four carboxylic acid groups from which two moles of water have been removed to form two cyclic anhydride groupings. The unsaturated alcohols used for making the unsaturated carboxy esters have the formula ##STR1## wherein R is H or CH.sub.3, R.sub.1 is H, CH.sub.3, or .dbd.CH.sub.2,n is an integer from 1 to 4 inclusive, andx is 0 or 1.
    Type: Grant
    Filed: October 29, 1993
    Date of Patent: September 20, 1994
    Assignee: Bisco, Inc.
    Inventors: Byoung Suh, Martin Hamer