Patents by Inventor Raymond So

Raymond So 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).

  • Publication number: 20120093077
    Abstract: A device associated with a Voice over IP (VoIP) network receives a call from a mobile device. The device determines whether a sector identifier (ID) associated with the call includes a femtocell identifier. The device further determines a location identifier included in the sector ID when the sector ID includes the femtocell identifier. The device also identifies a recipient of the call based on the location identifier and forwards the call to the recipient.
    Type: Application
    Filed: June 30, 2011
    Publication date: April 19, 2012
    Applicants: CELLCO PARTNERSHIP, VERIZON PATENT AND LICENSING INC.
    Inventors: James MATHISON, Said HANBALY, Mingxing LI, Raymond SO
  • Publication number: 20060092925
    Abstract: A temporary address assignment server in an IP network assigns a temporary number to use for setting up a mobile terminated call to a mobile station roaming in an IP network. The temporary number is supplied to a switching node, such as a Mobile Switching Center, in a circuit switched network. The Mobile Switching Center sets up a connection with a Media Gateway by sending a call setup message to a Media Gateway Control Function. The call setup message includes the temporary number assigned by the temporary address assignment server. The Media Gateway Control Function uses the temporary number to establish a media session with the mobile station.
    Type: Application
    Filed: October 26, 2005
    Publication date: May 4, 2006
    Inventors: Sven Svensson, Martin Renschler, Raymond So
  • Patent number: 5783702
    Abstract: Cisapride, i.e. cis-4-amino-5-chloro-N-?1-?3-(4 fluoro-phenoxy)propyl!-3-methoxy-4-piperidinyl!-2-methoxy-benzamide, and similar benzamide derivatives, are prepared from novel 1-aryloxyalkyl- or 1-aralkyl-3-arylcarbonyloxy-4-oxo-piperidines, by nuclear substituent re arrangement involving acyl transfer under animal forming conditions, to give the corresponding 1-aryloxyalkyl- or 1-aralkyl-3-hydroxy-4-lower alkoxy-4-arylamido piperidine. This in turn is readily converted to the corresponding 3-oxo-4-arylamido-piperidine by reaction with strong organic acid, which can then be reduced, deprotected and 3-methylated to give the final compound, e.g. cisapride.
    Type: Grant
    Filed: August 21, 1996
    Date of Patent: July 21, 1998
    Assignee: Torcan Chemical Ltd.
    Inventors: Yee-Fung Lu, Clarke Slemon, Raymond So, Jan Oudenes, Teng-Ko Ngooi
  • Patent number: 5684177
    Abstract: In a process for making synthetic prostaglandin-type compounds such as misoprostol, organo metallic cuprate complexes capable of reacting with cyclopentenones are prepared by reaction of an alkyl lithium compound with a cuprous halide, followed by reaction of the resulting complex with a vinyl stannane, using an excess of alkyl lithium in the initial reaction and maintaining the excess present during the formation of the organo metallic cuprate complex.
    Type: Grant
    Filed: May 17, 1996
    Date of Patent: November 4, 1997
    Assignee: Torcan Chemical Ltd.
    Inventors: Yee-Fung Lu, Raymond So, Dan To, Casimir G. Antczak
  • Patent number: 5665884
    Abstract: Cisapride, i.e. cis-4-amino-5-chloro-N-[1-[3-(4 fluoro-phenoxy)propyl]-3-methoxy-4-piperidinyl]-2-methoxy-benzamide, and similar benzamide derivatives, are prepared from novel 1-aryloxyalkyl- or 1-aralkyl-3-arylcarbonyloxy-4-oxo-piperidines, by nuclear substituent re arrangement involving acyl transfer under animal forming conditions, to give the corresponding 1-aryloxyalkyl- or 1-aralkyl-3-hydroxy-4-lower alkoxy-4-arylamido piperidine. This in turn is readily converted to the corresponding 3-oxo-4-arylamido-piperidine by reaction with strong organic acid, which can then be reduced, deprotected and 3-methylated to give the final compound, e.g. cisapride.
    Type: Grant
    Filed: August 21, 1996
    Date of Patent: September 9, 1997
    Assignee: Torcan Chemical Ltd.
    Inventors: Yee-Fung Lu, Raymond So, Clarke Slemon, Jan Oudenes, Teng-Ko Ngooi
  • Patent number: 5585387
    Abstract: Cisapride, i.e. cis-4-amino-5-chloro-N-[1-[3-(4 fluoro-phenoxy)propyl]-3-methoxy-4-piperidinyl]-2-methoxy-benzamide, and similar benzamide derivatives, are prepared from novel 1-aryloxyalkyl- or 1-aralkyl-3-arylcarbonyloxy-4-oxo-piperidines, by nuclear substituent re arrangement involving acyl transfer under animal forming conditions, to give the corresponding 1-aryloxyalkyl- or 1-aralkyl-3-hydroxy-4-lower alkoxy-4-arylamido piperidine. This in turn is readily converted to the corresponding 3-oxo-4-arylamido-piperidine by reaction with strong organic acid, which can then be reduced, deprotected and 3-methylated to give the final compound, e.g. cisapride.
    Type: Grant
    Filed: October 7, 1994
    Date of Patent: December 17, 1996
    Assignee: Torcan Chemical Ltd.
    Inventors: Yee-Fung Lu, Raymond So, Clarke Slemon, Jan Oudenes, Teng-Ko Ngooi