Patents by Inventor James Krell
James Krell 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: 20200002261Abstract: The present invention provides processes for preparing a prostacyclin analogue of Formula I or a pharmaceutically acceptable salt thereof, wherein R10 is a linear or branched C1-6 alkyl. The processes of the present invention comprise steps that generate improved yields and fewer byproducts than traditional methods. The processes of the present invention employ reagents (e.g., the oxidizing reagent) that are less toxic that those used in the traditional methods (e.g., oxalyl chloride). Many of the processes of the present invention generate intermediates with improved e.e. and chemical purity; thereby eliminating the need of additional chromatography steps. And, the processes of the present invention are scalable to generate commercial quantities of the final compound.Type: ApplicationFiled: September 11, 2019Publication date: January 2, 2020Applicant: CAYMAN CHEMICAL COMPANY INCORPORATEDInventors: Kirk William Hering, Gilles CHAMBOURNIER, Gregory William ENDRES, Victor FEDIJ, Thomas James KRELL, II, Hussien Mahmoud MAHMOUD
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Patent number: 10450257Abstract: The present invention provides processes for preparing a prostacyclin analog of Formula I or a pharmaceutically acceptable salt thereof, wherein R10 is a linear or branched C1-6 alkyl. The processes of the present invention comprise steps that generate improved yields and fewer byproducts than traditional methods. The processes of the present invention employ reagents (e.g., the oxidizing reagent) that are less toxic that those used in the traditional methods (e.g., oxalyl chloride). Many of the processes of the present invention generate intermediates with improved e.e. and chemical purity; thereby eliminating the need of additional chromatography steps. And, the processes of the present invention are scalable to generate commercial quantities of the final compound.Type: GrantFiled: January 18, 2018Date of Patent: October 22, 2019Assignee: Cayman Chemical Company IncorporatedInventors: Kirk William Hering, Gilles Chambournier, Gregory William Endres, Victor Fedij, Thomas James Krell, II, Hussein Mahmoud Mahmoud
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Publication number: 20180141889Abstract: The present invention provides processes for preparing a prostacyclin analogue of Formula I or a pharmaceutically acceptable salt thereof, wherein R10 is a linear or branched C1-6 alkyl. The processes of the present invention comprise steps that generate improved yields and fewer byproducts than traditional methods. The processes of the present invention employ reagents (e.g., the oxidizing reagent) that are less toxic that those used in the traditional methods (e.g., oxalyl chloride). Many of the processes of the present invention generate intermediates with improved e.e. and chemical purity; thereby eliminating the need of additional chromatography steps. And, the processes of the present invention are scalable to generate commercial quantities of the final compound.Type: ApplicationFiled: January 18, 2018Publication date: May 24, 2018Applicant: CAYMAN CHEMICAL COMPANY INCORPORATEDInventors: Kirk William Hering, Gilles Chambournier, Gregory William Endres, Victor Fedij, Thomas James Krell, II, Hussein Mahmoud Mahmoud
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Patent number: 9908834Abstract: The present invention provides processes for preparing a prostacyclin analog of Formula (I) or a pharmaceutically acceptable salt thereof, wherein R10 is a linear or branched C1-6 alkyl. The processes of the present invention comprise steps that generate improved yields and fewer byproducts than traditional methods. The processes of the present invention employ reagents (e.g., the oxidizing reagent) that are less toxic that those used in the traditional methods (e.g., oxalyl chloride). Many of the processes of the present invention generate intermediates with improved e.e. and chemical purity; thereby eliminating the need of additional chromatography steps. And, the processes of the present invention are scalable to generate commercial quantities of the final compound.Type: GrantFiled: May 1, 2017Date of Patent: March 6, 2018Assignee: Cayman Chemical Company IncorporatedInventors: Kirk William Hering, Gilles Chambournier, Gregory William Endres, Victor Fedij, Thomas James Krell, II, Hussein Mahmoud Mahmoud
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Publication number: 20170297995Abstract: The present invention provides processes for preparing a prostacyclin analogue of Formula (I) or a pharmaceutically acceptable salt thereof, wherein R10 is a linear or branched C1-6 alkyl. The processes of the present invention comprise steps that generate improved yields and fewer byproducts than traditional methods. The processes of the present invention employ reagents (e.g., the oxidizing reagent) that are less toxic that those used in the traditional methods (e.g., oxalyl chloride). Many of the processes of the present invention generate intermediates with improved e.e. and chemical purity; thereby eliminating the need of additional chromatography steps. And, the processes of the present invention are scalable to generate commercial quantities of the final compound.Type: ApplicationFiled: May 1, 2017Publication date: October 19, 2017Applicant: CAYMAM CHEMICAL COMPANY INCORPORATEDInventors: Kirk William Hering, Gilles Chambournier, Gregory William Endres, Victor Fedij, Thomas James Krell, II, Hussein Mahmoud Mahmoud
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Publication number: 20150315114Abstract: The present invention provides processes for preparing a prostacyclin analogue of Formula (I) or a pharmaceutically acceptable salt thereof, wherein R10 is a linear or branched C1-6 alkyl. The processes of the present invention comprise steps that generate improved yields and fewer byproducts than traditional methods. The processes of the present invention employ reagents (e.g., the oxidizing reagent) that are less toxic that those used in the traditional methods (e.g., oxalyl chloride). Many of the processes of the present invention generate intermediates with improved e.e. and chemical purity; thereby eliminating the need of additional chromatography steps. And, the processes of the present invention are scalable to generate commercial quantities of the final compound.Type: ApplicationFiled: December 6, 2013Publication date: November 5, 2015Inventors: Kirk Willam HERING, Gilles CHAMBOURNIER, Gregory William ENDRES, Victor FEDIJ, Thomas James KRELL, II, Hussein Mahmoud MAHMOUD
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Patent number: 8396847Abstract: A system to retrieve and analyze data may include at least one data collection engine to operate on a processor and to retrieve selected data related to an inquiry from at least one data source. The system may also include at least one rules engine to operate on the processor or another processor to apply predetermined functions to the selected data to respond to the inquiry.Type: GrantFiled: June 17, 2003Date of Patent: March 12, 2013Assignee: Bank of America CorporationInventors: Chandramohan Subramanian, Michael P. Galloway, Jeffrey J. Potts, Brian Stump, James Krell
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Publication number: 20040267704Abstract: A system to retrieve and analyze data may include at least one data collection engine to operate on a processor and to retrieve selected data related to an inquiry from at least one data source. The system may also include at least one rules engine to operate on the processor or another processor to apply predetermined functions to the selected data to respond to the inquiry.Type: ApplicationFiled: June 17, 2003Publication date: December 30, 2004Inventors: Chandramohan Subramanian, Michael P. Galloway, Jeffrey J. Potts, Brian Stump, James Krell