CDGM GLASS CO., LTD

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
C03C CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS1941
 
  
 
G02B OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS 3202
 
  
 
C03B MANUFACTURE OR SHAPING OF GLASS, OR OF MINERAL OR SLAG WOOL; SUPPLEMENTARY PROCESSES IN THE MANUFACTURE OR SHAPING OF GLASS, OR OF MINERAL OR SLAG WOOL 146

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9828281 Fluorophosphate optical glassApr 21, 15Nov 28, 17[C03C]
9771299 Optical glass with negative anomalous dispersion and optical elementMar 10, 15Sep 26, 17[C03C, G02B]
9580351 Optical glass for precision molding, prefabricated glass, optical element and optical instrumentSep 24, 13Feb 28, 17[C03C]
9546105 Near-infrared light absorbing glass, element and filterFeb 04, 13Jan 17, 17[C03C, G02B]
9487432 High refractivity and high dispersion optical glass, element and instrumentJan 20, 15Nov 08, 16[C03C]
9434636 Phosphate optical glassFeb 06, 12Sep 06, 16[C03C]
9346704 Optical glassOct 17, 13May 24, 16[C03C]
9321673 Near-infrared absorption glass, element and filterSep 18, 12Apr 26, 16[C03C]
9169152 Optical glass and optical elementSep 18, 12Oct 27, 15[C03C]
9145328 Optical glass and optical elementSep 06, 12Sep 29, 15[C03C]

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Expired/Abandoned/Withdrawn Patents

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