MAEDA LIMITED

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
B01D SEPARATION 3131
 
  
 
G01N INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES 1205

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
6244120 Apparatus and method for counting number of particles present in compressed air, and method of constructing compressed-air cleaning systemJan 13, 00Jun 12, 01[G01N]
6159259 Filter for compressed airDec 15, 98Dec 12, 00[B01D]
5888259 Filter device for compressed airMay 22, 97Mar 30, 99[B01D]
5385592 Filter device for compressed airJul 22, 93Jan 31, 95[B01D]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5011519 In-line filter and trap structure device for compressed airExpiredNov 21, 89Apr 30, 91[B01D]
4897094 In-line filter assembly for compressed airExpiredMar 31, 89Jan 30, 90[B01D]
4848989 In-line filter assembly for compressed airExpiredAug 28, 87Jul 18, 89[B01D]
4774148 Composite sheet material for magnetic and electronic shielding and product obtained therefromExpiredOct 30, 86Sep 27, 88[B32B]
4647714 Composite sheet material for magnetic and electronic shielding and product obtained therefromExpiredDec 28, 84Mar 03, 87[H01B, H05K]

Top Inventors for This Owner

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