MEISEI CHEMICAL WORKS, LTD.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
C08G MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS 2118
 
  
 
B01F MIXING, e.g. DISSOLVING, EMULSIFYING, DISPERSING 141
 
  
 
B01J CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS, COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS 1108
 
  
 
C01B NON-METALLIC ELEMENTS; COMPOUNDS THEREOF178
 
  
 
C09B ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES; MORDANTS; LAKES 142
 
  
 
D04H MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL 130
 
  
 
D21H PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C, D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR 137

Top Patents (by citation)

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Recent Publications

Publication # Title Filing Date Pub Date Intl Class
2017/0080,397 DISPERSANT, DISPERSION COMPOSITION, AND FIBROUS SHEETAug 31, 15Mar 23, 17[C01B, C08G, C09B, D21H, B01F, D04H]

Recent Patents

Patent # Title Filing Date Issue Date Intl Class
7622415 Polymerization catalyst composition for ethylene oxide and proces for the production of poly(ethylene oxide) with the sameOct 30, 03Nov 24, 09[C08G, B01J]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2010/0233,391 Ink- Jet Recording MediumAbandonedJan 29, 07Sep 16, 10[B41M]
5866669 Sulfonated phenol-formaldehyde resin for paper-makingExpiredMay 29, 97Feb 02, 99[C08G]
4780180 Nonflammable paperExpiredDec 15, 87Oct 25, 88[D21H]
4723960 Process for scouring and dyeing synthetic fibers in one-bath with a pH-adjusting agentExpiredOct 21, 85Feb 09, 88[C09B]
4382111 Method of treating fiberExpiredMay 05, 81May 03, 83[D02G]
4259396 Flame retardant treatment for polyester productsExpiredMay 16, 78Mar 31, 81[B32B]
4215988 Resist printing methodExpiredOct 16, 78Aug 05, 80[C09B]

Top Inventors for This Owner

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