NIPPON FURNACE KOGYO KABUSHIKI KAISHA
Patent Owner
Stats
- 4 US PATENTS IN FORCE
 - 0 US APPLICATIONS PENDING
 - Aug 09, 2005 most recent publication
 
Details
- 4 Issued Patents
 - 0 Issued in last 3 years
 - 0 Published in last 3 years
 
- 177 Total Citation Count
 - Feb 28, 1994 Earliest Filing
 - 12 Expired/Abandoned/Withdrawn Patents
 
Patent Activity in the Last 10 Years
Technologies
						Intl Class
						Technology
						Matters
						Rank in Class
					
					Top Patents (by citation)
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Recent Publications
- No Recent Publications to Display
 
Recent Patents
						
							Patent #
							Title
							Filing Date
							Issue Date
							Intl Class
						
					
					
						
					
					5808932 Memory system which enables storage and retrieval of more than two states in a memory cellDec 23, 96Sep 15, 98[G11C]
					Expired/Abandoned/Withdrawn Patents
						
							Patent #
							Title
							Status
							Filing Date
							Issue/Pub Date
							Intl Class
						
					
					
					6234789 Inter-switching heat accumulating regenerative burner systemExpiredMar 17, 00May 22, 01[F27D]
5848885 Regenerative burner and regenerative heat exchange system applicable theretoExpiredMay 22, 96Dec 15, 98[F23L, F24C, F23D]
5515909 Flow switching apparatus, regenerative alternate combustion burner system using the apparatus, and regenerative heat exchanger system using the apparatusExpiredJan 17, 95May 14, 96[F23L]
					Top Inventors for This Owner
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