Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Method and apparatus for perforating the envelopes of filter cigarettes or the like

Method and apparatus for perforating the envelopes of filter cigarettes or the like

US Patent 4249545 · Granted Feb 10, 1981

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Device for combining groups of filter segments for producing multi-segment filte2012
Method and arrangement for producing compound filters2006
Method of and apparatus for measuring the diameters of rod-shaped articles2005
Method of making a tobacco rod2005
Apparatus for making a tobacco rod2004
Apparatus and method for generating information on the characteristics of a fibe2004
Method of densifying streams of filter material for tobacco smoke2004
Method of and apparatus for making composite filter rod sections for use in filt1993
Apparatus for measuring the density of a tobacco stream1990
Method of and apparatus for making a trimmed stream of tobacco fibers or the lik1990
Apparatus for making perforations in articles of the tobacco processing industry1989
Method of and apparatus for treating accumulations of fibers of tobacco or other1989