Tetron, Inc.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
B22D CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES 247
 
  
 
C21B MANUFACTURE OF IRON OR STEEL 221
 
  
 
C21C PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL 117

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
8591802 Vortex inhibitorDec 11, 08Nov 26, 13[B22D]
7169349 Method and apparatus for delivering metallurgically improved molten metalMay 17, 00Jan 30, 07[C21B]
6576039 Method and apparatus for metal pouringJul 02, 01Jun 10, 03[C21C]
RE37417 Vortex inhibitor for molten metal dischargeMay 25, 95Oct 23, 01[B22D]
6074598 Method and apparatus for slag separation sensingJun 15, 98Jun 13, 00[C21B]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2008/0116,233 VORTEX INHIBITOR WITH SACRIFICIAL RODAbandonedJan 30, 08May 22, 08[B22D]
2004/0164,466 Vortex inhibitor with sacrificial rodAbandonedFeb 18, 04Aug 26, 04[C21C]
6723275 Vortex inhibitor with sacrificial rodExpiredJan 16, 01Apr 20, 04[C21B]
5044610 Vortex inhibitor for molten metal dischargeExpiredOct 06, 89Sep 03, 91[B22D]
4886412 Method and system for loading wafersExpiredOct 28, 86Dec 12, 89[B65G]
4871148 Vortex inhibitor for molten metal dischargeExpiredAug 09, 88Oct 03, 89[B22D]
4694779 Reactor apparatus for semiconductor wafer processingExpiredOct 19, 84Sep 22, 87[C23C]
4601415 Vortex inhibitor for molten metal dischargeExpiredSep 21, 84Jul 22, 86[B22D]

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