DFC CO. LTD.

Patent Owner

Watch Compare Add to Portfolio

Stats

Details

Patent Activity in the Last 10 Years

Technologies

  • No Technology to Display

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

  • No Recent Patents to Display

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5678560 Brain-wave analysis method and apparatusExpiredDec 05, 95Oct 21, 97[A61B]
5470081 Control-signal input device for computer game machinesExpiredJun 28, 93Nov 28, 95[A63F]
5460184 Mental-concentration measuring method and apparatusExpiredAug 13, 93Oct 24, 95[A61B]
5415174 Filter-coefficient conversion systemExpiredAug 13, 93May 16, 95[A61B]

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!.