Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Coextrusion process and apparatus for manufacturing multi-layered flat films of thermoplastic materials

Coextrusion process and apparatus for manufacturing multi-layered flat films of thermoplastic materials

US Patent 4426344 · Granted Jan 17, 1984

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Tank and method2023
Protocol test device having at least two channels2010
Protocol test device including a network processor2006
Plastic packaging container with improved ability for electrostatic charge deriv1998
Self-supporting sheet-like structure having at least one structured surface1997
Packaging system for receiving a film web wound up in roll form onto a winding s1996
Apparatus for the production of moldings from thermotropic, liquid-crystalline s1994
Process for passing a hydrophobic substrate through a corona discharge zone and 1993
Polyester film having improved adhesion properties1993
Apparatus for producing composite bodies from layers of plastic flim laminated t1993
Self-supporting sheet-like structure comprising a substrate and a coating, and a1993
Process for the production of moldings from thermotropic, liquid-crystalline sub1992