Assignee
THEYSOHN FRIEDRICH FA
DE·15 granted patents·210 citations·filing 1980–1994
Top patents by PatentIndex Score
15 records- 0172US5405660AMethod of generating a wear-reducing layer on a plastifying worm or screwTHEYSOHN FRIEDRICH FA·Filed 1993·Granted Apr 11, 1995·38 cites·9 claims
- 0263US5362146APlastifier with disk and pin throttle for plastic materialsTHEYSOHN FRIEDRICH FA·Filed 1994·Granted Nov 8, 1994·25 cites·2 claims
- 0362US5352539AExtruder housing for double-screw extruder having an annularly stepped internal bore covered by a hot isostatically-pressed structure, and method of making sameTHEYSOHN FRIEDRICH FA·Filed 1992·Granted Oct 4, 1994·28 cites·12 claims
- 0450US5139402AFloating plastics section calibrating deviceTHEYSOHN FRIEDRICH FA·Filed 1990·Granted Aug 18, 1992·16 cites·5 claims
- 0547US4364664ADual worm extruder having wear resistant bore wallsTHEYSOHN FRIEDRICH FA·Filed 1981·Granted Dec 21, 1982·14 cites·6 claims
- 0644US5422049AMethod and apparatus for the plastifying of synthetic resinsTHEYSOHN FRIEDRICH FA·Filed 1993·Granted Jun 6, 1995·16 cites·8 claims
- 0744US5302106ADouble-worm extruder with polygonal-disk kneaderTHEYSOHN FRIEDRICH FA·Filed 1992·Granted Apr 12, 1994·12 cites·7 claims
- 0843US5236325AApparatus for producing an extruded profile with thrust-resistant spacerTHEYSOHN FRIEDRICH FA·Filed 1991·Granted Aug 17, 1993·12 cites·17 claims
- 0942US5238165AExtrudate hauler with upper and lower endless tracks with yaw adjustmentTHEYSOHN FRIEDRICH FA·Filed 1991·Granted Aug 24, 1993·11 cites·12 claims
- 1041US5350231ADouble worm extruder with meshing screwsTHEYSOHN FRIEDRICH FA·Filed 1993·Granted Sep 27, 1994·10 cites·3 claims
- 1136US5474720AMethod of and apparatus for producing elongated shaped bodies of thermoplastic synthetic resinTHEYSOHN FRIEDRICH FA·Filed 1994·Granted Dec 12, 1995·8 cites·10 claims
- 1234US4327859AMethod of coating dual-worm extruder boresTHEYSOHN FRIEDRICH FA·Filed 1980·Granted May 4, 1982·7 cites·9 claims
- 1331US5169650ACalibration unit for extruded plastic materialTHEYSOHN FRIEDRICH FA·Filed 1990·Granted Dec 8, 1992·5 cites·8 claims
- 1430US5255973APlastifier with throttle meansTHEYSOHN FRIEDRICH FA·Filed 1992·Granted Oct 26, 1993·4 cites·11 claims
- 1528US5382146AControl device for the mechanical thermal adjustment of the nozzle of an extruder for elongate productsTHEYSOHN FRIEDRICH FA·Filed 1993·Granted Jan 17, 1995·4 cites·3 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →