Patents by Inventor Paul Adriaan Van Der Schaaf
Paul Adriaan Van Der Schaaf has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20230322680Abstract: The present invention is directed to new crystalline forms of Pitavastatin hemicalcium salt, referred to hereinafter as polymorphic Forms A, B, C, D, E and F, as well as the amorphous form. Furthermore, the present invention is directed to processes for the preparation of these crystalline forms and the amorphous form and pharmaceutical compositions comprising these crystalline forms or the amorphous forms.Type: ApplicationFiled: June 16, 2023Publication date: October 12, 2023Applicant: NISSAN CHEMICAL CORPORATIONInventors: Paul Adriaan VAN DER SCHAAF, Fritz BLATTER, Martin SZELAGIEWICZ, Kai-Uwe SCHOENING
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Publication number: 20220169614Abstract: The present invention is directed to new crystalline forms of Pitavastatin hemicalcium salt, referred to hereinafter as polymorphic Forms A, B, C, D, E and F, as well as the amorphous form. Furthermore, the present invention is directed to processes for the preparation of these crystalline forms and the amorphous form and pharmaceutical compositions comprising these crystalline forms or the amorphous forms.Type: ApplicationFiled: February 18, 2022Publication date: June 2, 2022Applicant: NISSAN CHEMICAL CORPORATIONInventors: Paul Adriaan VAN DER SCHAAF, Fritz BLATTER, Martin SZELAGIEWICZ, Kai-Uwe SCHOENING
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Publication number: 20210002227Abstract: The present invention is directed to new crystalline forms of Pitavastatin hemicalcium salt, referred to hereinafter as polymorphic Forms A, B, C, D, E and F, as well as the amorphous form. Furthermore, the present invention is directed to processes for the preparation of these crystalline forms and the amorphous form and pharmaceutical compositions comprising these crystalline forms or the amorphous forms.Type: ApplicationFiled: September 23, 2020Publication date: January 7, 2021Applicant: NISSAN CHEMICAL CORPORATIONInventors: Paul Adriaan VAN DER SCHAAF, Fritz BLATTER, Martin SZELAGIEWICZ, Kai-Uwe SCHOENING
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Publication number: 20200148644Abstract: The present invention is directed to new crystalline forms of Pitavastatin hemicalcium salt, referred to hereinafter as polymorphic Forms A, B, C, D, E and F, as well as the amorphous form. Furthermore, the present invention is directed to processes for the preparation of these crystalline forms and the amorphous form and pharmaceutical compositions comprising these crystalline forms or the amorphous forms.Type: ApplicationFiled: January 13, 2020Publication date: May 14, 2020Applicant: NISSAN CHEMICAL CORPORATIONInventors: Paul Adriaan VAN DER SCHAAF, Fritz BLATTER, Martin SZELAGIEWICZ, Kai-Uwe SCHOENING
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Publication number: 20190256469Abstract: The present invention is directed to new crystalline forms of Pitavastatin hemicalcium salt, referred to hereinafter as polymorphic Forms A, B, C, D, E and F, as well as the amorphous form. Furthermore, the present invention is directed to processes for the preparation of these crystalline forms and the amorphous form and pharmaceutical compositions comprising these crystalline forms or the amorphous forms.Type: ApplicationFiled: May 1, 2019Publication date: August 22, 2019Applicant: NISSAN CHEMICAL CORPORATIONInventors: Paul Adriaan Van Der Schaaf, Fritz Blatter, Martin Szelagiewicz, Kai-Uwe Schoening
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Publication number: 20180346425Abstract: The present invention is directed to new crystalline forms of Pitavastatin hemicalcium salt, referred to hereinafter as polymorphic Forms A, B, C, D, E and F, as well as the amorphous form. Furthermore, the present invention is directed to processes for the preparation of these crystalline forms and the amorphous form and pharmaceutical compositions comprising these crystalline forms or the amorphous forms.Type: ApplicationFiled: August 3, 2018Publication date: December 6, 2018Applicant: Nissan Chemical Industries, Ltd.Inventors: Paul Adriaan Van Der Schaaf, Fritz Blatter, Martin Szelagiewicz, Kai-Uwe Schoening
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Publication number: 20180029987Abstract: The present invention is directed to new crystalline forms of Pitavastatin hemicalcium salt, referred to hereinafter as polymorphic Forms A, B, C, D, E and F, as well as the amorphous form. Furthermore, the present invention is directed to processes for the preparation of these crystalline forms and the amorphous form and pharmaceutical compositions comprising these crystalline forms or the amorphous forms.Type: ApplicationFiled: October 5, 2017Publication date: February 1, 2018Applicant: NISSAN CHEMICAL INDUSTRIES, LTD.Inventors: Paul Adriaan VAN DER SCHAAF, Fritz Blatter, Martin Szelagiewicz, Kai-Uwe Schoening
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Publication number: 20170022163Abstract: The present invention is directed to new crystalline forms of Pitavastatin hemicalcium salt, referred to hereinafter as polymorphic Forms A, B, C, D, E and F, as well as the amorphous form. Furthermore, the present invention is directed to processes for the preparation of these crystalline forms and the amorphous form and pharmaceutical compositions comprising these crystalline forms or the amorphous forms.Type: ApplicationFiled: October 4, 2016Publication date: January 26, 2017Applicant: NISSAN CHEMICAL INDUSTRIES, LTD.Inventors: Paul Adriaan VAN DER SCHAAF, Fritz Blatter, Martin Szelagiewicz, Kai-Uwe Schoening
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Publication number: 20160024010Abstract: The present invention is directed to new crystalline forms of Pitavastatin hemicalcium salt, referred to hereinafter as polymorphic Forms A, B, C, D, E and F, as well as the amorphous form. Furthermore, the present invention is directed to processes for the preparation of these crystalline forms and the amorphous form and pharmaceutical compositions comprising these crystalline forms or the amorphous forms.Type: ApplicationFiled: October 1, 2015Publication date: January 28, 2016Applicant: NISSAN CHEMICAL INDUSTRIES, LTD.Inventors: Paul Adriaan VAN DER SCHAAF, Fritz BLATTER, Martin SZELAGIEWICZ, Kai-Uwe SCHOENING
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Patent number: 9012899Abstract: This invention relates to electroluminescent metal complexes of the formula (I) wherein the ring A, represents an optionally substituted aryl group which can optionally contain heteroatoms, the ring B, represents an optionally substituted nitrogen containing aryl group, which can optionally contain further heteroatoms, or the ring A may be taken with the ring B binding to the ring A to form a ring; the group C, represents an acyclic carbene, or a cyclic carbene (ring C), which can optionally contain heteroatoms, the ring D, represents an optionally substituted aryl group which can optionally contain heteroatoms, n1 is an integer of 1 to 3, m1 is an integer of 0, 1 or 2, m2 is an integer 0 or 1, M1 is a metal with an atomic weight of greater than 40, L3 is a monodentate ligand or a bidentate ligand, Y is —C(?O)— or —C(X1)2—, wherein X1 is hydrogen or C1-4alkyl, especially hydrogen and y is 0 or 1, especially 0; a process for their preparation, electronic devices comprising the meType: GrantFiled: June 12, 2013Date of Patent: April 21, 2015Assignee: BASF SEInventors: Roger Pretot, Paul Adriaan Van Der Schaaf, Jemima Schmidt, Beat Schmidhalter, Thomas Schafer, Bernd Lamatsch
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Publication number: 20140364614Abstract: The present invention is directed to new crystalline forms of Pitavastatin hemicalcium salt, referred to hereinafter as polymorphic Forms A, B, C, D, E and F, as well as the amorphous form. Furthermore, the present invention is directed to processes for the preparation of these crystalline forms and the amorphous form and pharmaceutical compositions comprising these crystalline forms or the amorphous forms.Type: ApplicationFiled: August 26, 2014Publication date: December 11, 2014Applicant: NISSAN CHEMICAL INDUSTRIES, LTD.Inventors: Paul Adriaan VAN DER SCHAAF, Fritz BLATTER, Martin SZELAGIEWICZ, Kai-Uwe SCHOENING
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Patent number: 8853405Abstract: The present invention is directed to new crystalline forms of Pitavastatin hemicalcium salt, referred to hereinafter as polymorphic Forms A, B, C, D, E and F, as well as the amorphous form. Furthermore, the present invention is directed to processes for the preparation of these crystalline forms and the amorphous form and pharmaceutical compositions comprising these crystalline forms or the amorphous forms.Type: GrantFiled: September 3, 2013Date of Patent: October 7, 2014Assignee: Nissan Chemical Industries Ltd.Inventors: Paul Adriaan Van Der Schaaf, Fritz Blatter, Martin Szelagiewicz, Kai-Uwe Schoening
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Patent number: 8685541Abstract: Disclosed are electroluminescent materials comprising a homopolymer based on recurring structural units of the formula (I) wherein R9, R9? R9?, R11, R13 R14, R11?, R13?, R14? independently are H or an organic substituent, where at least one of R9, R9? R9?, R11, R13 R14, R11?, R13?, R14? comprises a group R10 of the formula —(Sp)x10-[PG?]< wherein Sp is a divalent organic spacer, PG? is a group derived from a polymerizable group, and x10 is 0 or 1, with substituents and spacer as defined in claim 1. Further disclosed are some novel polymers of this class as well as monomers for their preparation. The homopolymers are advantageously used as a host material in devices further comprising a luminescent component, which is usually selected from phosphorescent metal complexes and fluorescent dopants.Type: GrantFiled: May 19, 2009Date of Patent: April 1, 2014Assignee: BASF SEInventors: Natalia Chebotareva, Roger Pretot, Paul Adriaan Van Der Schaaf, Annemarie Wolleb, Heinz Wolleb
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Publication number: 20140005402Abstract: The present invention is directed to new crystalline forms of Pitavastatin hemicalcium salt, referred to hereinafter as polymorphic Forms A, B, C, D, E and F, as well as the amorphous form. Furthermore, the present invention is directed to processes for the preparation of these crystalline forms and the amorphous form and pharmaceutical compositions comprising these crystalline forms or the amorphous forms.Type: ApplicationFiled: September 3, 2013Publication date: January 2, 2014Applicant: NISSAN CHEMICAL INDUSTRIES, LTD.Inventors: Paul Adriaan VAN DER SCHAAF, Fritz Blatter, Martin Szelagiewicz, Kai-Uwe Schoening
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Patent number: 8557993Abstract: The present invention is directed to new crystalline forms of Pitavastatin hemicalcium salt, referred to hereinafter as polymorphic Forms A, B, C, D, E and F, as well as the amorphous form. Furthermore, the present invention is directed to processes for the preparation of these crystalline forms and the amorphous form and pharmaceutical compositions comprising these crystalline forms or the amorphous forms.Type: GrantFiled: October 31, 2012Date of Patent: October 15, 2013Assignee: Nissan Chemical Industries Ltd.Inventors: Paul Adriaan Van der Schaaf, Fritz Blatter, Martin Szelagiewicz, Kai-Uwe Schoening
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Patent number: 8492749Abstract: This invention relates to electroluminescent metal complexes of the formula (I), wherein the ring A, formula (II), represents an optionally substituted aryl group which can optionally contain heteroatoms, the ring B, formula (III), represents an optionally substituted nitrogen containing aryl group, which can optionally contain further heteroatoms, or the ring A may be taken with the ring B binding to the ring A to form a ring; the group C, formula (IV), represents an acyclic carbene, or a cyclic carbene (ring C), which can optionally contain heteroatoms, the ring D, formula (V), represents an optionally substituted aryl group which can optionally contain heteroatoms, n1 is an integer of 1 to 3, m1 is an integer of 0, 1, or 2, m2 is an integer 0, or 1, M1 is a metal with an atomic weight of greater than 40, L3 is a monodentate ligand, or a bidentate ligand, Y is —C(?O)—, or —C(X1)2-, wherein X1 is hydrogen, or C1-4alkyl, especially hydrogen, and y is 0, or 1, especially 0; a process for their preparation, eleType: GrantFiled: December 14, 2005Date of Patent: July 23, 2013Assignee: BASF SEInventors: Roger Prétôt, Paul Adriaan Van Der Schaaf, Jemima Schmidt, Beat Schmidhalter, Thomas Schäfer, Bernd Lamatsch
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Publication number: 20120128611Abstract: Disclosed is the use of a UV filter combination, comprising (a) a first UV filter selected from benzylidene malonates of formula (1), wherein R1 methyl; ethyl; propyl; or n-butyl; if R1 is methyl, then R is tert.Type: ApplicationFiled: June 29, 2010Publication date: May 24, 2012Applicant: BASF SEInventors: Julie Grumelard, Thomas Ehlis, Paul Adriaan Van Der Schaaf, Markus Hansch, Myriam Sohn
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Patent number: 8177901Abstract: The present invention relates to a process for the production of porous inorganic materials or a matrix material containing nanoparticles with high uniformity of thickness and/or high effective surface area and to the materials obtainable by this process. By the above-mentioned process materials with a defined thickness in the region of ±10%, preferably ±5% of the average thickness are available.Type: GrantFiled: August 6, 2009Date of Patent: May 15, 2012Assignee: BASF SE LudwigshafenInventors: Patrice Bujard, Andreas Mühlebach, Paul Adriaan Van Der Schaaf
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Publication number: 20120101126Abstract: The present invention is directed to new crystalline forms of Pitavastatin hemicalcium salt, referred to hereinafter as polymorphic Forms A, B, C, D, E and F, as well as the amorphous form. Furthermore, the present invention is directed to processes for the preparation of these crystalline forms and the amorphous form and pharmaceutical compositions comprising these crystalline forms or the amorphous form.Type: ApplicationFiled: October 25, 2011Publication date: April 26, 2012Applicant: Nissan Chemical Industries Ltd.Inventors: Paul Adriaan Van Der Schaaf, Fritz Blatter, Martin Szelagiewicz, Kai-Uwe Schöning
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Patent number: 8138303Abstract: The present invention relates to novel polymers comprising a repeating unit of the formula (I) and their use in electronic devices. The polymers according to the invention have excellent solubility in organic solvents and excellent film-forming properties. In addition, high charge carrier mobilities and high stability of the emission color can be observed, if the polymers according to the invention are used in organic light emitting diodes (OLEDs).Type: GrantFiled: January 31, 2007Date of Patent: March 20, 2012Assignee: BASF SEInventors: Natalia Chebotareva, Roger Prétôt, Paul Adriaan Van der Schaaf, Thomas Schäfer, Beat Schmidhalter, Peter Murer