PORVAIR PLC

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
B01D SEPARATION 5129
 
  
 
C22B PRODUCTION OR REFINING OF METALS 523
 
  
 
C04B LIME; MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS 266
 
  
 
B01L CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE 157
 
  
 
B23K SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM 192
 
  
 
C03C CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS159
 
  
 
C21C PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL 117
 
  
 
G01N INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES 1205

Top Patents (by citation)

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Recent Publications

Publication # Title Filing Date Pub Date Intl Class
2017/0050,885 Boron-Free Aluminum Castshop Ceramic Foam FilterMay 11, 15Feb 23, 17[C04B, B01D]

Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9504944 coated ceramic filters used in filtration of aluminum—lithium alloys and reactive alloysJun 05, 14Nov 29, 16[C22B, B01D]
9458523 Corrosion resistant glass coating applied to ceramic foam used to filter molten aluminumAug 24, 10Oct 04, 16[C22B, B01D]
8518528 Low expansion corrosion resistant ceramic foam filters for molten aluminum filtrationApr 02, 07Aug 27, 13[C03C, B05D, C04B]
8486176 Method for filtering molten aluminum and molten aluminum alloysJun 16, 09Jul 16, 13[B01D]
8202346 Porous reticulated metal foam for filtering molten magnesiumJun 24, 09Jun 19, 12[C22B]
7718114 Ceramic foam filter for better filtration of molten ironAug 04, 06May 18, 10[C22B, C21C]
7547409 Compact micro-porous media degasserJun 10, 04Jun 16, 09[C22B]
7328831 Method of making a brazed metal article and the article formed therebyJun 25, 04Feb 12, 08[B23K]
7316721 Ceramic foam insulator with thermal expansion jointJan 28, 05Jan 08, 08[B01D]
6051191 MicroplatesNov 17, 97Apr 18, 00[G01N, B01L]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2015/0145,186 Higher Strength, Mullite-Based Iron Foundry FilterAbandonedJul 25, 13May 28, 15[C22B, C04B, B01D]
2014/0348,693 Matrix Riser Breaker InsertAbandonedMay 16, 14Nov 27, 14[B22D, B22C]
2012/0175,804 LOW EXPANSION CORROSION RESISTANT CERAMIC FOAM FILTERS FOR MOLTEN ALUMINUM FILTRATIONAbandonedMar 19, 12Jul 12, 12[B29C]
2010/0194,007 NOVEL FILTRATION SYSTEM FOR LARGE CAST IRON CASTINGSAbandonedSep 25, 08Aug 05, 10[B01D]
7585455 Compact micro-porous media degasserExpiredJun 16, 08Sep 08, 09[C22B]
2008/0227,044 Metal Foam Radiant BurnerAbandonedMar 10, 08Sep 18, 08[F23D]
2007/0206,745 COMMUNICATION SYSTEM AND TRANSFER CONTROL METHOD TOGETHER WITH TELPHONE DEVICE, COMMUNICATION DEVICE, AND PROGRAM USED FOR SAMEAbandonedMay 18, 05Sep 06, 07[H04M]
2006/0284,351 Fine pore media and method of making sameAbandonedDec 23, 03Dec 21, 06[C04B]
2006/0027,792 Carbon composite near-net-shape molded part and method of makingAbandonedJul 28, 05Feb 09, 06[H01B]
6977058 Inoculant-strainer with improved filtration effectiveness and inoculant dissolutionExpiredMar 11, 03Dec 20, 05[C21C]
6793707 Inoculation filterExpiredJan 10, 02Sep 21, 04[C22B, C21C]
2004/0099,611 Porous filter comprising gamma-phase alumima and process for manufactureAbandonedNov 17, 03May 27, 04[B01D]
6706239 Method of co-forming metal foam articles and the articles formed by the method thereofExpiredFeb 05, 01Mar 16, 04[B22F]
2003/0146,151 Sintered magnesium oxide filterAbandonedJan 23, 02Aug 07, 03[B01D]
2002/0064,413 Porous plastic articles and method of making the sameAbandonedOct 02, 01May 30, 02[B05C]

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