Patents by Inventor Yumeng Ma

Yumeng Ma 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).

  • Dental composite milling blanks with enhanced mechanical properties and methods of making the same
    Patent number: 11744683
    Abstract: A dental resin composite comprising a thermally cured composition of polymeric resin monomers and inorganic fillers that comprise at least 80 wt % total filler loading is provided. Mill blocks made from the dental resin composite and produced via free radical polymerization under high-temperature (approximately 160° C. to 220° C.) and high-pressure process (approximately 300 MPa to 560 MPa) exhibited enhanced mechanical strength and good esthetics suitable for use in CAD/CAM indirect restorations such as, inlays, onlays, crowns and bridges.
    Type: Grant
    Filed: June 18, 2020
    Date of Patent: September 5, 2023
    Assignee: James R. Glidewell Dental Ceramics, Inc.
    Inventors: Long Ling, Yumeng Ma
  • Dual-Curing Dental Compositions with High Stability
    Publication number: 20210283023
    Abstract: Two-part dual-curing dental compositions containing a hydroperoxide, a thiourea derivative and an acetylacetonate salt as redox radical initiator system, are provided. The dental compositions may contain an acidic monomer for use as a self-adhesive cement. The dental compositions possess enhanced shelf-life stability for working/setting time, bonding strength, color stability, slump, flexural strength/modulus, and when kept at 50° C. for more than 16 weeks.
    Type: Application
    Filed: May 27, 2021
    Publication date: September 16, 2021
    Inventors: Long Ling, Yulin Chen, Yumeng Ma
  • Dual-curing dental compositions with high stability
    Patent number: 11020324
    Abstract: Two-part dual-curing dental compositions containing a hydroperoxide, a thiourea derivative and an acetylacetonate salt as redox radical initiator system, are provided. The dental compositions may contain an acidic monomer for use as a self-adhesive cement. The dental compositions possess enhanced shelf-life stability for working/setting time, bonding strength, color stability, slump, flexural strength/modulus, and when kept at 50° C. for more than 16 weeks.
    Type: Grant
    Filed: February 26, 2019
    Date of Patent: June 1, 2021
    Assignee: James R. Glidewell Dental Ceramics, Inc.
    Inventors: Long Ling, Yulin Chen, Yumeng Ma
  • Dental Composite Milling Blanks with Enhanced Mechanical Properties and Methods of Making the Same
    Publication number: 20200397543
    Abstract: A dental resin composite comprising a thermally cured composition of polymeric resin monomers and inorganic fillers that comprise at least 80 wt % total filler loading is provided. Mill blocks made from the dental resin composite and produced via free radical polymerization under high-temperature (approximately 160° C. to 220° C.) and high-pressure process (approximately 300 MPa to 560 MPa) exhibited enhanced mechanical strength and good esthetics suitable for use in CAD/CAM indirect restorations such as, inlays, onlays, crowns and bridges.
    Type: Application
    Filed: June 18, 2020
    Publication date: December 24, 2020
    Inventors: Long Ling, Yumeng Ma
  • Dual-Curing Dental Compositions with High Stability
    Publication number: 20200268615
    Abstract: Two-part dual-curing dental compositions containing a hydroperoxide, a thiourea derivative and an acetylacetonate salt as redox radical initiator system, are provided. The dental compositions may contain an acidic monomer for use as a self-adhesive cement. The dental compositions possess enhanced shelf-life stability for working/setting time, bonding strength, color stability, slump, flexural strength/modulus, and when kept at 50° C. for more than 16 weeks.
    Type: Application
    Filed: February 26, 2019
    Publication date: August 27, 2020
    Inventors: Long Ling, Yulin Chen, Yumeng Ma