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- 12 Expired/Abandoned/Withdrawn Patents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)
Upgrade to the Professional Level to View Top Patents for this Owner. Learn More |
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Expired/Abandoned/Withdrawn Patents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
Upgrade to the Professional Level to View Top Inventors for this Owner. Learn More |
We are sorry but your current selection exceeds the maximum number of comparisons () for this membership level. Upgrade to our Level for up to -1 comparisons!
We are sorry but your current selection exceeds the maximum number of portfolios (0) for this membership level. Upgrade to our Level for up to -1 portfolios!.