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- 12 Expired/Abandoned/Withdrawn Patents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Expired/Abandoned/Withdrawn Patents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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