Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Process for producing perforated film

Process for producing perforated film

US Patent 4317792 · Granted Mar 2, 1982

Estimated economic value: $593,000 ⓘ

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Kick stand plate2005
Heat exchange jacket for attachment to an external surface of a pump motor1999
Biodegradable, liquid impervious films1993
Disposable absorbent articles with biodegradable backsheets1993
Method of making a rotatable molding element for selectively aperturing thermopl1987
Screen for selectively perforating thermoplastic film1987
Method of fabricating a cylindrical multilayer screen1986
Screen fabrication1986
Sterilizable perforated packaging material1985
Laminated, seamless, cylindrical metal screen for vacuum perforation of thermopl1985
Apparatus for producing perforated plastic film1985
Perforated film1985