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    • 5. 外观设计
    • Sunshade
    • USD1001702S1
    • 2023-10-17
    • US29895320
    • 2023-06-20
    • Yongfu Li
    • Yongfu Li
    • FIG. 1 is a front, right and top perspective view of a sunshade, showing my design.
      FIG. 2 is a rear, left and bottom perspective view thereof.
      FIG. 3 is a front elevation view thereof.
      FIG. 4 is a rear elevation view thereof.
      FIG. 5 is a left side elevation view thereof.
      FIG. 6 is a right side elevation view thereof.
      FIG. 7 is a top plan view thereof.
      FIG. 8 is a bottom plan view thereof.
      FIG. 9 is an enlarged view of detail 9 in FIG. 1.
      FIG. 10 is an enlarged view of detail 10 in FIG. 2.
      FIG. 11 is an enlarged view of detail 11 in FIG. 2; and,
      FIG. 12 is an enlarged view of detail 12 in FIG. 2.
      The broken lines depict portions of the sunshade that form no part of the claimed design.
      The dot-dash broken lines in FIGS. 1, 2, 9, 10, 11 and 12 depict the boundaries of the enlargements that form no part of the claimed design.
    • 6. 发明授权
    • Uncharged pyrenyloxy sulfonamide dyes for conjugation with biomolecules
    • US09850383B2
    • 2017-12-26
    • US14998651
    • 2016-01-27
    • Yongfu Li
    • Yongfu Li
    • C07H19/20C09B57/00G01N21/64
    • C09B57/001G01N21/6486
    • The invention relates to novel fluorescent dyes based on the following pyrenyloxy sulfonamide structure: wherein R1 is a leash joined to the pyrenyloxy group via an ether link containing generally a reactive functional group such as, activated carbonate, activated ester, amino group, azide or alkyne for conjugation with biomolecules; R2 and R3 are hydrogen atoms, or short alkyl chains, or cyclic rings with or without heteroatoms such as nitrogen, oxygen, sulfur, phosphorus. The spectral properties of the fluorescent dyes are sufficiently different in wave-lengths and intensity from fluorescein as to permit simultaneous use of fluorescein and/or more other fluorescent dyes with minimum interference and to avoid interference from endogenous green fluorescent protein in biological system. The dyes are non-ionic to facilitate their entry into cells for intracellular detection. The non-ionic structure also precludes undesired electrostatic reactions with ionic sites on biological components and structures. The dyes have bigger Stokes' shifts than other dyes with similar spectral properties allowing use of simpler, more efficient detection equipment, are not sensitive to pH, and have good solubility in aqueous solution.
    • 8. 外观设计
    • Sunshade
    • USD1001698S1
    • 2023-10-17
    • US29894628
    • 2023-06-12
    • Yongfu Li
    • Yongfu Li
    • FIG. 1 is a front, right and top perspective view of a sunshade, showing my design.
      FIG. 2 is a rear, right and bottom perspective view thereof.
      FIG. 3 is a rear, right and top perspective view thereof.
      FIG. 4 is a front elevation view thereof.
      FIG. 5 is a rear elevation view thereof.
      FIG. 6 is a left side elevation view thereof.
      FIG. 7 is a right side elevation view thereof.
      FIG. 8 is a top plan view thereof.
      FIG. 9 is a top plan view thereof.
      FIG. 10 is an enlarged view of detail 10 in FIG. 1.
      FIG. 11 is an enlarged view of detail 11 in FIG. 2; and,
      FIG. 12 is an enlarged view of detail 12 in FIG. 2.
      The broken lines depict portions of the sunshade that form no part of the claimed design.
      The dot-dash broken lines in FIGS. 1, 2 10, 11 and 12 depict the boundaries of the enlargements that form no part of the claimed design.
    • 9. 发明申请
    • Uncharged pyrenyloxy sulfonamide dyes for conjugation with biomolecules
    • US20170210904A1
    • 2017-07-27
    • US14998651
    • 2016-01-27
    • Yongfu Li
    • Yongfu Li
    • C09B57/00G01N21/64
    • C09B57/001G01N21/6486
    • The invention relates to novel fluorescent dyes based on the following pyrenyloxy sulfonamide structure: wherein R1 is a leash joined to the pyrenyloxy group via an ether link containing generally a reactive functional group such as, activated carbonate, activated ester, amino group, azide or alkyne for conjugation with biomolecules; R2 and R3 are hydrogen atoms, or short alkyl chains, or cyclic rings with or without heteroatoms such as nitrogen, oxygen, sulfur, phosphorus. The spectral properties of the fluorescent dyes are sufficiently different in wave-lengths and intensity from fluorescein as to permit simultaneous use of fluorescein and/or more other fluorescent dyes with minimum interference and to avoid interference from endogenous green fluorescent protein in biological system. The dyes are non-ionic to facilitate their entry into cells for intracellular detection. The non-ionic structure also precludes undesired electrostatic reactions with ionic sites on biological components and structures. The dyes have bigger Stokes' shifts than other dyes with similar spectral properties allowing use of simpler, more efficient detection equipment, are not sensitive to pH, and have good solubility in aqueous solution.