Inventor
SIGWART CHRISTOPH
DE33 patents
⚠️ This page may combine multiple inventors who share the name “SIGWART CHRISTOPH”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
BASF AG
24 patentsUS6441110B1Aug 27, 2002
Method for producing halogen-free reactive polyisobutene
BASF AG53 citations92
US6384154B1May 7, 2002
Preparation of halogen-free, reactive polyisobutene
BASF AG31 citations92
US5773648AJun 30, 1998
Preparation of polytetrahydrofuran
BASF AG31 citations92
US7041752B2May 9, 2006
Catalyst and method for the production of polytetrahydrofuran
BASF AG11 citations83
US6870014B2Mar 22, 2005
Catalyst and method for producing polytetrahydrofurane
BASF AG18 citations83
US5391771AFeb 21, 1995
Hydrogenation of citric acid
BASF AG16 citations74
US7057080B2Jun 6, 2006
Color index of multivalent alcohols by hydrogenation
BASF AG10 citations73
US6359108B1Mar 19, 2002
Method for polymerizing cyclic ether
BASF AG12 citations73
US6211401B1Apr 3, 2001
Process for preparing polytetrahydrofuran
BASF AG8 citations73
US6043338AMar 28, 2000
Method of producing polyoxytetramethylene glycol
BASF AG9 citations73
US6716937B2Apr 6, 2004
Method for the single-step production of polytetrahydrofuran and tetrahydrofuran copolymers
BASF AG10 citations72
US6852869B2Feb 8, 2005
Method for the production of polytetrahydrofuran with low color index
BASF AG4 citations62
US6316664B1Nov 13, 2001
Process for preparing hydroxy-containing compounds from formic acid esters
BASF AG2 citations62
US6111147AAug 29, 2000
Process for preparing polytetrahydrofuran and derivatives thereof
BASF AG4 citations62
US5939590AAug 17, 1999
Tetrahydrofuran/but-2-yne-1, 4-diol copolymers containing C-C triple bonds
BASF AG4 citations62
US5929261AJul 27, 1999
Process for the selective hydration of vinyloxirane to 1,2-butylene oxide of heterogeneous catalysts
BASF AG2 citations62
US5770747AJun 23, 1998
Preparation of 1,2-butylene oxide
BASF AG2 citations62
US7074944B2Jul 11, 2006
Method for producing polytetrahydrofuran
BASF AG5 citations60
US6103941AAug 15, 2000
Preparation of 1,4-butanediol
BASF AG0 citations52
US5977417ANov 2, 1999
Preparation of 1,4-butanediol
BASF AG1 citations52
US7148318B2Dec 12, 2006
Method for producing polytetrahydrofurane having a low color indices
BASF AG0 citations51
US6124368ASep 26, 2000
Method for producing polytetrahydrofuran
BASF AG1 citations51
US6002027ADec 14, 1999
Preparation of 1,2-butylene oxide
BASF AG1 citations51
US5869707AFeb 9, 1999
Preparation of 1,2-butylene oxide
BASF AG0 citations51
BASF SE
5 patentsUS9469732B2Oct 18, 2016
Method for producing low-halogen polybiphenylsulfone polymers
BASF SE12 citations82
US7456249B2Nov 25, 2008
Catalyst, its preparation and the polymerization of cyclic ethers over this catalyst
BASF SE1 citations51
US7449422B2Nov 11, 2008
Catalyst, its preparation and the polymerization of cyclic ethers over this catalyst
BASF SE0 citations51
US8378144B2Feb 19, 2013
Process for preparing polyoxymethylene homopolymers or copolymers by homopolymerization or copolymerization of trioxane, starting from methanol
BASF SE0 citations40
US8350063B2Jan 8, 2013
Method for separating tioxane from a trioxane/formaldehyde/water mixture by means of pressure change rectification
BASF SE0 citations40