Inventor
HELMS JR CHARLES F
US29 patents
⚠️ This page may combine multiple inventors who share the name “HELMS JR CHARLES F”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
BASF CORP
27 patentsUS5948528ASep 7, 1999
Process for modifying synthetic bicomponent fiber cross-sections and bicomponent fibers thereby produced
BASF CORP68 citations96
US5834089ANov 10, 1998
Additive-containing synthetic filaments, and yarns and carpets including such filaments
BASF CORP55 citations95
US5807490ASep 15, 1998
Method of separating polymers from mixtures thereof
BASF CORP28 citations93
US6162382ADec 19, 2000
Process of making multicomponent fiber
BASF CORP21 citations92
US6153138ANov 28, 2000
Process for modifying synthetic bicomponent fiber cross-sections
BASF CORP32 citations92
US6017478AJan 25, 2000
Method of making hollow bicomponent filaments
BASF CORP23 citations92
US5932346AAug 3, 1999
Multiple domain fibers having inter-domain boundary compatibilizing layer and methods of making the same
BASF CORP23 citations92
US5922462AJul 13, 1999
Multiple domain fibers having surface roughened or mechanically modified inter-domain boundary and methods of making the same
BASF CORP36 citations92
US5904982AMay 18, 1999
Hollow bicomponent filaments and methods of making same
BASF CORP23 citations92
US6232371B1May 15, 2001
Dispersible additive systems for polymeric materials, and methods of making and incorporating the same in such polymeric materials
BASF CORP16 citations91
US5800746ASep 1, 1998
Methods of making pigmented synthetic filaments
BASF CORP17 citations91
US5869181AFeb 9, 1999
Multiple domain fibers and methods of making the same
BASF CORP16 citations82
US5833893ANov 10, 1998
Methods of making different additive-containing filaments
BASF CORP16 citations81
US6187215B1Feb 13, 2001
Photochemically etched plates for synthetic fiber-forming spin packs and method of making same
BASF CORP5 citations74
US6392007B1May 21, 2002
Multi-pixel liquid streams, especially fiber-forming polymeric streams, and methods and apparatus for forming same
BASF CORP12 citations73
US6017479AJan 25, 2000
Process of making a multiple domain fiber having an inter-domain boundary compatibilizing layer
BASF CORP11 citations73
US5879801AMar 9, 1999
Multiple domain fibers having inter-domain boundary compatibilizing layer and methods and apparatus for making the same
BASF CORP10 citations73
US6416859B1Jul 9, 2002
Methods of making pigmented filaments
BASF CORP8 citations72
US6616438B2Sep 9, 2003
Continuous polymerization and direct fiber spinning and systems for accomplishing same
BASF CORP8 citations71
US6465583B2Oct 15, 2002
Continuous polymerization and direct fiber spinning and systems for accomplishing same
BASF CORP8 citations71
US6441109B1Aug 27, 2002
Continuous polymerization and direct fiber spinning and apparatus for accomplishing same
BASF CORP9 citations71
US6391239B2May 21, 2002
Methods of making multiphase elongate polymeric extrudates by directing additives into a cross-sectional location thereof
BASF CORP7 citations71
US6413071B1Jul 2, 2002
Thin plate spinnerette assembly
BASF CORP8 citations68
US5922477AJul 13, 1999
Photochemically etched plates for synthetic fiber-forming spin packs and method of making same
BASF CORP4 citations63
US6289928B1Sep 18, 2001
Apparatus and method for direct injection of additives into a polymer melt stream
BASF CORP4 citations60
US6010654AJan 4, 2000
Method of making multiple domain fibers
BASF CORP1 citations52
US6455612B2Sep 24, 2002
Apparatus and method for direct injection of additives into a polymer melt stream
BASF CORP0 citations49