Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Reinforced bubble recording medium and information record

Reinforced bubble recording medium and information record

US Patent 4408213 · Granted Oct 4, 1983

Estimated economic value: $1,671,000 ⓘ

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Optical disc with a theft deterrent coating2014
Method for double feed detection2012
Content guard system for copy protection of recordable media2010
Methods and apparatus for uniquely identifying a large number of film prints2009
Optical disc with a theft deterrent coating2008
Content guard system for copy protection of recordable media2008
Methods and apparatus for uniquely identifying a large number of film prints2007
Method and system for limiting content diffusion to local receivers2007
System and method for authorized compression of digitized music2006
Content guard system for copy protection of recordable media2004
System for storing a history of sampled pointer signals when a pointer interrupt1993
Method and apparatus for detecting changes in raster data1990