Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Method and press molding apparatus for forming information carrier discs of granular thermoplastic material

Method and press molding apparatus for forming information carrier discs of granular thermoplastic material

US Patent 4657714 · Granted Apr 14, 1987

Estimated economic value: $398,000 ⓘ

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

In-mold decorating method and in-mold system2016
Relay apparatus in a digital radio communication system and a relay method there2006
Hemostatic valve for a catheter introducer2002
Surface-indented covering member1994
Method and apparatus for producing an optical element1991
Self-regulating heating article having electrodes directly connected to a PTC la1990
Method for manufacturing electronic device including a vibration generating elem1990
Method for resin molding monitoring1989
Self-regulating heating article having electrodes directly connected to a PTC la1988
Mold clamping device for molding machines1988
Method for cast molding plastic substrate1988
Aluminum electrolytic capacitor and a manufacturing method therefor1987