Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Vented single stage barrier screw with a gas vent hole and axial bore in the screw for venting gases

Vented single stage barrier screw with a gas vent hole and axial bore in the screw for venting gases

US Patent 6293690 · Granted Sep 25, 2001

Estimated economic value: $18,391,000 ⓘ

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Methods and apparatus for processing of rare earth metal ore2016
Conductor of high electrical current at high temperature in oxygen and liquid me2016
Apparatus and method for condensing metal vapor2015
Primary production of elements2014
Apparatus and method for condensing metal vapor2013
Multi-staged vented extrusion screw with dual channel depth pumping section2003
Vented single stage barrier screw with a gas vent hole and axial bore in the scr2000
Method and apparatus for minimizing unwanted dynamics in a physical system1997
Method for plasticizing particulate plastic material1996
Apparatus for plasticizing particulate plastic material1994
Criss-cross hopper including non-contacting inserts1994
Coating hopper with criss-cross flow circuit1994