Boll & Kirch Filderbzu GmbH

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
B01D SEPARATION 4130
 
  
 
B04B CENTRIFUGES 126
 
  
 
F02M SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF 182

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9144807 Centrifuge for separating solid matter from a liquid and centrifuge rotor for the sameAug 17, 09Sep 29, 15[B04B, F01M]
7250109 Back-wash filterJun 04, 04Jul 31, 07[B01D]
6890434 Backflush filter, in particular for filtering lubricant oilMay 17, 01May 10, 05[B01D]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2013/0306,546 REVERSIBLE-FLOW FILTER WITH SCAVENGING DEVICEAbandonedJan 24, 12Nov 21, 13[B01D]
6872310 Precoated filter for the filtration of flowing mediaExpiredNov 05, 01Mar 29, 05[B01D]
2002/0038,783 Precoated filter for the filtration of flowing mediaAbandonedNov 02, 01Apr 04, 02[B01D]
4804481 Helical spring apparatus and process for detaching filter cakeExpiredSep 08, 87Feb 14, 89[B01D]
4517086 Tubular filter apparatusExpiredApr 01, 83May 14, 85[B01D]
4415448 Flush-back filterExpiredApr 12, 82Nov 15, 83[B01D]
4256583 Flush-back filterExpiredSep 10, 79Mar 17, 81[B01D]

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