Communications Patents Limited

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Expired/Abandoned/Withdrawn Patents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
4717229 Bi-directional optical fiber couplerExpiredSep 20, 85Jan 05, 88[G02B]
4612519 Switch assembly and circuitExpiredJan 11, 85Sep 16, 86[H01P]
4538174 Two-way subscriber TV system with multiple subscriber's setsExpiredMay 16, 83Aug 27, 85[H04N]
4398214 Wired television broadcasting systemExpiredJul 01, 81Aug 09, 83[H04N]
4386365 Combined wired broadcasting and viewphone systemExpiredJun 02, 80May 31, 83[H04N]
4376274 Printed circuit transformersExpiredSep 29, 81Mar 08, 83[H01F]
4302771 Wire broadcasting system with subscriber controlled switched program selectionExpiredJul 23, 80Nov 24, 81[H04N]
4282528 Plural antennas having a sleeve dipoleExpiredMay 03, 79Aug 04, 81[G06F]
4257123 Device for monitoring the performance of a transmitterExpiredApr 24, 79Mar 17, 81[H04B]
4246608 Method for measuring crossview between two channels in a wired television broadcasting systemExpiredMay 31, 78Jan 20, 81[H04N]
4213103 Circuit for detecting and controlling simultaneous conduction of two switches connected in seriesExpiredMay 10, 78Jul 15, 80[H03K, H02M]

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!.