Patents by Inventor Anita Chan

Anita Chan 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).

  • Optoelectronic assembly
    Patent number: 11189985
    Abstract: An optoelectronic assembly is disclosed. The disclosed assembly includes one or more lasers formed on a first substrate, and a programmable driver circuit formed on a second substrate configured as an integrated circuit. The first and second substrates are mounted on a third substrate in a stacked arrangement.
    Type: Grant
    Filed: December 6, 2019
    Date of Patent: November 30, 2021
    Assignee: II-VI DELAWARE, INC.
    Inventors: David Allouche, Michael Chu, Brian R. Carey, Jonathan Ashbrook, Anita Chan, Krzysztof Szczerba
  • OPTOELECTRONIC ASSEMBLY
    Publication number: 20200185875
    Abstract: An optoelectronic assembly is disclosed. The disclosed assembly includes one or more lasers formed on a first substrate, and a programmable driver circuit formed on a second substrate configured as an integrated circuit. The first and second substrates are mounted on a third substrate in a stacked arrangement.
    Type: Application
    Filed: December 6, 2019
    Publication date: June 11, 2020
    Inventors: David Allouche, Michael Chu, Brian R. Carey, Jonathan Ashbrook, Anita Chan, Krzysztof Szczerba
  • Dispersible cationic polygalactomannan polymers for use in personal care and household care applications
    Publication number: 20080112907
    Abstract: The present invention relates to polygalactomannan compositions, and more particularly cationic guar gum compositions, which, when crosslinked with glyoxal, from discrete guar particles which are capable of being easily dispersed in water which permits subsequent processing of the guar, such as washing. The guar and its derivatives are desirable for use in applications such as personal care, household care products and the like.
    Type: Application
    Filed: November 2, 2007
    Publication date: May 15, 2008
    Inventors: Anita Chan, Paquita Erazo-Majewicz, Gijsbert Kroon, Thomas Majewicz
  • CYCLOALKYLFUSED INDOLE, BENZOTHIOPHENE, BENZOFURAN AND INDENE DERIVATIVES
    Publication number: 20080081910
    Abstract: The present invention provides cycloalkylfused indole, benzothiophene, benzofuran, and indene derivatives, and methods for using them to, for example, treat, prevent and/or ameliorate central nervous system diseases by antagonizing 5-HT1A receptors and modulating serotonin levels.
    Type: Application
    Filed: October 11, 2007
    Publication date: April 3, 2008
    Applicant: Wyeth
    Inventors: Annmarie Sabb, Robert Vogel, Gary Stack, Deborah Evrard, Amedeo Failli, Lalitha Krishnan, Anita Chan, Jianxin Ren, Charles Guinosso, Reinhardt Baudy, Jean Sze, Yanfang Li, Charles Stanton, Antonia Nikitenko
  • Process for synthesizing beta-lactamase inhibitor intermediates
    Publication number: 20080009634
    Abstract: There is provided a process for the preparation of bicyclicheteroaryl carboxaldehydes having the structural Formula I where X and Y are defined in the specification The bicyclic heteroaryl carboxaldehydes are useful as intermediates in the preparation of ?-lactamase inhibitors.
    Type: Application
    Filed: June 18, 2007
    Publication date: January 10, 2008
    Applicant: Wyeth Holdings Corporation
    Inventors: Michael Winkley, Anita Chan, Ivo Jirkovsky, Kenneth Kremer, Joseph Zeldis, Antonia Nikitenko, Henry Strong, Tarek Mansour, Gulnaz Khafizova, Aranapakam Venkatesan
  • Process for the Synthesis of Derivatives of 2,3-Dihydro-1,4-Dioxino-[2,3-f] Quinolines
    Publication number: 20070123705
    Abstract: Methods of preparing compounds of Formula I are provided.
    Type: Application
    Filed: December 4, 2006
    Publication date: May 31, 2007
    Applicant: Wyeth
    Inventors: Anita Chan, Timothy Curran, Silvio Iera, Warren Chew, John Sellstedt, Galina Vid, Gregg Feigelson, Zhixian Ding
  • Diazepinoquinolines, synthesis thereof, and intermediates thereto
    Publication number: 20070027142
    Abstract: The present invention relates to methods for synthesizing compounds useful as 5HT2C agonists or partial agonists, derivatives thereof, and to intermediates thereto.
    Type: Application
    Filed: July 24, 2006
    Publication date: February 1, 2007
    Applicant: Wyeth
    Inventors: Sreenivasulu Megati, Anita Chan, Gregg Feigelson
  • Cycloalkylfused indole, benzothiophene, benzofuran and indene derivatives
    Publication number: 20060205759
    Abstract: The present invention provides cycloalkylfused indole, benzothiophene, benzofuran, and indene derivatives, and methods for using them to, for example, treat, prevent and/or ameliorate central nervous system diseases by antagonizing 5-HT1A receptors and modulating serotonin levels.
    Type: Application
    Filed: February 16, 2006
    Publication date: September 14, 2006
    Applicant: Wyeth
    Inventors: Annmarie Sabb, Robert Vogel, Gary Stack, Deborah Evrard, Amedeo Failli, Lalitha Krishnan, Anita Chan, Jianxin Ren, Charles Guinosso, Reinhardt Baudy, Jean Sze, Yanfang Li, Charles Stanton, Antonia Nikitenko
  • Process for the synthesis of derivatives of 2,3-dihydro-1,4-dioxino-[2,3-f] quinoline
    Publication number: 20060074240
    Abstract: Methods of preparing compounds of Formula I are provided.
    Type: Application
    Filed: November 18, 2005
    Publication date: April 6, 2006
    Applicant: Wyeth
    Inventors: Anita Chan, Timothy Curran, Silvio Iera, Warren Chew, John Sellstedt, Galina Vid, Gregg Feigelson, Zhixian Ding
  • Process for preparing N-aryl-piperazine derivatives
    Publication number: 20050209245
    Abstract: Processes for preparing N-aryl-piperazine derivatives of formula I particularly (R)-4-cyano-N-[2-[4-(2,3-dihydro-1,4-benzodioxan-5-yl)-1-piperazinyl-propyl]-N-(2-pyridinyl)-benzamide, are disclosed. Compositions comprising N-aryl-piperazine derivatives and low levels of common impurities are also disclosed. In addition, products produced by the process are disclosed.
    Type: Application
    Filed: March 17, 2005
    Publication date: September 22, 2005
    Applicant: Wyeth
    Inventors: Anita Chan, Jianxin Ren, Archana Sharma
  • Preparation of N1-(2'-pyridyl)-1,2-propanediamine sulfamic acid and its use in the synthesis of biologically active piperazines
    Publication number: 20050070709
    Abstract: A process for making an N1-(2?-pyridyl)-1,2-alkanediamine sulfamic acid of formula II by reacting a compound of formula I with NH2R? wherein R and R? are as defined in the specification. The invention also includes the compound of formula II, and optical isomers thereof. The compound of formula II is an intermediate useful for making chiral piperazine derivatives which are active at the 5-HT1A receptor.
    Type: Application
    Filed: August 16, 2004
    Publication date: March 31, 2005
    Applicant: Wyeth
    Inventors: Anita Chan, Gregg Feigelson, Joseph Zeldis, Ivo Jirkovsky