Patents by Inventor Nathan Yee

Nathan Yee 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: 20080200202
    Abstract: Techniques for controlling transmit power are described. Due to link imbalance, a downlink (DL) serving cell may have the best downlink for a UE, and an uplink (UL) serving cell may have the best uplink for the UE. In one design of UL power control, the UE receives first and second UL TPC commands from the DL and UL serving cells, respectively, and adjusts its transmit power based on these UL TPC commands and in accordance with an OR-of-the-UPs rule. In one design of DL power control, the UE generates a DL TPC command based on received signal qualities of both the DL and UL serving cells. In another design, power control is performed independently for the DL and UL serving cells. The UE generates a separate DL TPC command for each cell, which adjusts its transmit power based on the DL TPC command for that cell.
    Type: Application
    Filed: February 11, 2008
    Publication date: August 21, 2008
    Applicant: QUALCOMM INCORPORATED
    Inventors: Juan Montojo, Ketan N. Patel, Nathan Yee
  • Patent number: 7265222
    Abstract: Disclosed is a process of making compounds of formula(I): wherein R1, R2, R3, R4 and Ra of formula(I) are defined herein. The product compounds inhibit production of cytokines involved in inflammatory processes and are thus useful for treating diseases and pathological conditions involving inflammation. Also disclosed are intermediates useful in making such compounds.
    Type: Grant
    Filed: June 30, 2004
    Date of Patent: September 4, 2007
    Assignee: Boehringer Ingelheim Pharmaceuticals, Inc.
    Inventors: Nizar Haddad, Xudong Wei, Chris Hugh Senanayake, Jinghua Xu, Nathan Yee
  • Publication number: 20070100142
    Abstract: A process for stereoselective synthesis of a compound of Formula (I) wherein R1, R2, R3, R4, and R5 are as described herein.
    Type: Application
    Filed: October 2, 2006
    Publication date: May 3, 2007
    Inventors: Jinhua Song, Jonathan Reeves, Frank Roschangar, Zhulin Tan, Nathan Yee
  • Patent number: 7189844
    Abstract: Disclosed is a process for preparing a compound of formula I comprising cyclizing a diene compound of formula III in the presence of a ruthenium catalyst in a suitable organic solvent, wherein the process is performed in a gaseous fluid at supercritical or near-supercritical conditions: The compounds of formula (I) are active agents for the treatment of hepatitis C viral (HCV) infections or are intermediates useful for the preparation of anti-HCV agents.
    Type: Grant
    Filed: September 9, 2005
    Date of Patent: March 13, 2007
    Assignee: Boehringer Ingelheim International GmbH
    Inventors: Fabrice Gallou, Nathan Yee
  • Publication number: 20060205638
    Abstract: Disclosed is a process for preparing a macrocyclic compound of the formula (I) wherein a hydroxyl-substituted macrocyclic compound of formula (3) is reacted with a sulfonyl-substituted compound of formula QUIN: The compounds of formula (I) are potent active agents for the treatment of hepatitis C virus (HCV) infection.
    Type: Application
    Filed: March 6, 2006
    Publication date: September 14, 2006
    Applicant: Boehringer Ingelheim International GmbH
    Inventors: Carl Busacca, Fabrice Gallou, Nizar Haddad, Azad Hossain, Suresh Kapadia, Jianxiu Liu, Chris Senanayake, Xudong Wei, Nathan Yee
  • Publication number: 20060063915
    Abstract: Disclosed is a process for preparing a compound of formula I comprising cyclizing a diene compound of formula III in the presence of a ruthenium catalyst in a suitable organic solvent, wherein the process is performed in a gaseous fluid at supercritical or near-supercritical conditions: The compounds of formula (I) are active agents for the treatment of hepatitis C viral (HCV) infections or are intermediates useful for the preparation of anti-HCV agents.
    Type: Application
    Filed: September 9, 2005
    Publication date: March 23, 2006
    Applicant: Boehringer Ingelheim International GmbH
    Inventors: Fabrice Gallou, Nathan Yee
  • Publication number: 20050209488
    Abstract: A process for stereoselective synthesis of a compound of Formula (I) wherein R1, R2, R3, R4, and R5 are as described herein.
    Type: Application
    Filed: March 2, 2005
    Publication date: September 22, 2005
    Applicant: Boehringer Ingelheim Pharmaceuticals, Inc.
    Inventors: Jinhua Song, Zhulin Tan, Nathan Yee, Chris Senanayake, Jinghua Xu, Fabrice Gallou
  • Publication number: 20050209135
    Abstract: Disclosed is a multi-step process for preparing a macrocyclic compound of the formula (I): wherein Q is a radical of the following formula: and the other variables are as defined herein. The compounds of formula (I) are potent active agents for the treatment of hepatitis C virus (HCV) infection.
    Type: Application
    Filed: March 11, 2005
    Publication date: September 22, 2005
    Applicant: Boehringer Ingelheim International GmbH
    Inventors: Carl Busacca, Vittorio Farina, Fabrice Gallou, Nizar Haddad, Xiao-Jun Wang, Xudong Wei, Jinghua Xu, Yibo Xu, Nathan Yee, Li Zhang
  • Publication number: 20050154186
    Abstract: A process for removing ruthenium or ruthenium-containing compounds from a reaction mixture comprising a compound of the following formula I in an organic solvent using supercritical fluid processing techniques: wherein RA, R3, R4, D and A are as defined herein. This invention has particular application for removing ruthenium-containing catalyst and ruthenium-containing catalyst by products from reaction mixtures that result from ring-closing olefin metathesis (RCM) reactions.
    Type: Application
    Filed: December 7, 2004
    Publication date: July 14, 2005
    Applicant: Boehringer Ingelheim International GmbH
    Inventors: Fabrice Gallou, Said Saim, Nathan Yee
  • Publication number: 20050131241
    Abstract: A process for stereoselective synthesis of compounds of Formula X wherein: R1 is an aryl or heteroaryl group, each optionally independently substituted with one to three substituent groups, wherein each substituent group of R1 is independently C1-C5 alkyl, C2-C5 alkenyl, C2-C5 alkynyl, C3-C8 cycloalkyl, heterocyclyl, aryl, heteroaryl, C1-C5 alkoxy, C2-C5 alkenyloxy, C2-C5 alkynyloxy, aryloxy, C1-C5 alkanoyloxy, C1-C5 alkanoyl, aroyl, trifluoromethyl, trifluoromethoxy, or C1-C5 alkylthio, wherein each substituent group of R1 is optionally independently substituted with one to three substituent groups selected from methyl, methoxy, fluoro, chloro, hydroxy, oxo, cyano, or amino; and R2 and R3 are each independently hydrogen or C1-C5 alkyl, or R2 and R3 together with the carbon atom they are commonly attached to form a C3-C8 spiro cycloalkyl ring.
    Type: Application
    Filed: September 30, 2004
    Publication date: June 16, 2005
    Applicant: Boehringer Ingelheim Pharmaceuticals, Inc.
    Inventors: Jinhua Song, Zhulin Tan, Jinghua Xu, Nathan Yee, Chris Senanayake
  • Publication number: 20050049187
    Abstract: Disclosed is a process for preparing a macrocyclic compound of the formula (I): which is carried out using an intermediate of the formula (II): wherein W, R1 through R4, D, A and R12 are as defined herein. The compounds of formula (I) are potent active agents for the treatment of hepatitis C virus (HCV) infection.
    Type: Application
    Filed: April 6, 2004
    Publication date: March 3, 2005
    Applicant: Boehringer Ingelheim International GmbH
    Inventors: Joerg Brandenburg, Kai Donsbach, Hans-Dieter Ecker, Rogelio Frutos, Fabrice Gallou, Dieter Gutheil, Nizar Haddad, Robert Hagenkoetter, Dirk Kemmer, Jutta Kroeber, Thomas Nicola, Juergen Schnaubelt, Michael Schul, Robert Simpson, Xudong Wei, Eric Winter, Yibo Xu, Nathan Yee
  • Publication number: 20040266767
    Abstract: Disclosed is a process of making compounds of formula(I): 1
    Type: Application
    Filed: June 30, 2004
    Publication date: December 30, 2004
    Applicant: Boehringer Ingelheim Pharmaceuticals, Inc.
    Inventors: Nizar Haddad, Xudong Wei, Chris Hugh Senanayake, Jinghua Xu, Nathan Yee
  • Patent number: 6603000
    Abstract: Disclosed is a novel method of producing heteroaryl amines of the formula(I): wherein X, Y and Z are described herein, the heteroarylamines are useful in the production of heteroaryl ureas which are key component in pharmaceutically active compounds possessing a heteroaryl urea group.
    Type: Grant
    Filed: July 11, 2001
    Date of Patent: August 5, 2003
    Assignee: Boehringer Ingelheim Pharmaceuticals, Inc.
    Inventors: Nathan Yee, Suresh R. Kapadia, Jinhua J. Song
  • Publication number: 20030028017
    Abstract: Disclosed is a novel method of producing heteroaryl amines of the formula(I): 1
    Type: Application
    Filed: July 11, 2001
    Publication date: February 6, 2003
    Inventors: Nathan Yee, Suresh R. Kapadia, Jinhua J. Song