M. WATANABE & CO., LTD.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
B08B CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL 157
 
  
 
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
 
  
 
C07C ACYCLIC OR CARBOCYCLIC COMPOUNDS 1137
 
  
 
F26B DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM 129

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
7140201 Method for producing silica particlesDec 28, 00Nov 28, 06[C03B]
6209553 Method of and apparatus for washing photomask and washing solution for photomaskFeb 16, 00Apr 03, 01[B08B]
5138105 Process and apparatus for recovering a lower alcohol from a mixture thereof with waterOct 18, 91Aug 11, 92[C07C, F26B]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2004/0213,724 High purity synthetic vitreous silica particlesAbandonedMar 17, 04Oct 28, 04[C01B, C03C]

Top Inventors for This Owner

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