ARDINGER, HORACE T., JR.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
C21B MANUFACTURE OF IRON OR STEEL 221

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
5186741 Direct reduction process in a rotary hearth furnaceApr 12, 91Feb 16, 93[C21B]
5164147 Heat treating furnaceFeb 14, 91Nov 17, 92[C21B]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5028034 Continuous feed shaft retort appartus for recovery of non-ferrous metalsExpiredMar 29, 90Jul 02, 91[C21C]
4963182 Continuous feed shaft retort process for recovery of non-ferrous metals from process dustExpiredMar 14, 89Oct 16, 90[C21B]
4931090 Pneumatic steelmaking vessel and method of producing steelExpiredAug 23, 89Jun 05, 90[C21C]
4590462 Oil leakage detection apparatusExpiredJan 28, 85May 20, 86[G08B]

Top Inventors for This Owner

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