NIRO PROCESS TECHNOLOGY B.V.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
C01B NON-METALLIC ELEMENTS; COMPOUNDS THEREOF178
 
  
 
C07D HETEROCYCLIC COMPOUNDS 1161
 
  
 
C30B SINGLE-CRYSTAL GROWTH 155

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
8431725 Purification of lactide rich streamsAug 28, 07Apr 30, 13[C07D]
8034312 Purification of phosphoric acid rich streamsMar 14, 08Oct 11, 11[C01B, B01D]
7179435 Method and apparatus for recovering a pure substance from an impure solution by crystallizationSep 10, 03Feb 20, 07[C30B]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
6890441 Hydraulic annular washing column, and process for separating solids from a suspensionExpiredMar 19, 04May 10, 05[B01D]
2004/0250,746 Ring crystallizer method and apparatusAbandonedSep 10, 03Dec 16, 04[C30B]
6467305 Method and apparatus for crystallization from liquidsExpiredJun 19, 00Oct 22, 02[B01D]
6247321 Method and apparatus for freezeconcentrating substancesExpiredDec 17, 98Jun 19, 01[B01D]
6241101 Installation for separating and purifying solidsExpiredDec 03, 98Jun 05, 01[B01D]
6241954 Crystallization method and installationExpiredApr 06, 99Jun 05, 01[B01D]
6164087 Apparatus for the cleaning of waste streamsExpiredFeb 12, 99Dec 26, 00[B01D]
5137739 Process for producing concentrated food liquidsExpiredOct 02, 90Aug 11, 92[A23L, B01D]
4705624 Apparatus and process for separating solid particles from a liquid suspension and/or for the purification or leaching of solid particlesExpiredFeb 14, 86Nov 10, 87[B01D]
4491462 Continuous packed bed wash columnExpiredOct 26, 83Jan 01, 85[B01D]
4481169 Washing columnExpiredDec 27, 82Nov 06, 84[B01J]
4475355 Continuous packed bed wash columnExpiredSep 16, 82Oct 09, 84[B01D]
4459144 Multi-stage counter-current concentration system and methodExpiredFeb 18, 82Jul 10, 84[B01D]
4430104 Multi-stage countercurrent concentrating system and method and separatorExpiredJul 19, 82Feb 07, 84[B01D]
4332599 Continuous packed bed wash columnExpiredJun 08, 79Jun 01, 82[B01D]
4316368 Multi-stage counter-current concentrating methodExpiredOct 30, 80Feb 23, 82[B01D]

Top Inventors for This Owner

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