Patents by Inventor Ling Tong

Ling Tong 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).

  • Process for homogenizing polyolefin drag reducing agents
    Publication number: 20040254266
    Abstract: A process for producing polymer drag reducing agent (DRA) slurries without cryogenic temperatures or conventional grinding is described. The homogenizing or size reduction of polymer, such as poly(alpha-olefins), may be achieved by the use of granulated polymer and at least one liquid, non-solvent for the polymer DRA. In one non-limiting embodiment of the invention, the homogenizing is conducted at ambient temperature. Examples of suitable non-solvents include water and non-aqueous non-solvents including, but not necessarily limited to, alcohols, glycols, glycol ethers, ketones, and esters; having from 2-6 carbon atoms, and combinations thereof. The polymeric DRA may be homogenized to an average particle size of about 600 microns or less.
    Type: Application
    Filed: March 24, 2003
    Publication date: December 16, 2004
    Inventors: John F. Motier, Lo-Chien Chou, Chee Ling Tong
  • Cannabinoid receptor ligands
    Publication number: 20040132804
    Abstract: A compound of the formula 1
    Type: Application
    Filed: November 21, 2003
    Publication date: July 8, 2004
    Applicant: Schering Corporation
    Inventors: Ling Tong, Lei Chen, Bandarpalle B. Shankar, Joseph A. Kozlowski, Neng-Yang Shih
  • Cannabinoid receptor agonists
    Publication number: 20040044051
    Abstract: A compound of the formula 1
    Type: Application
    Filed: June 17, 2003
    Publication date: March 4, 2004
    Applicant: Schering Corporation
    Inventors: Joseph A. Kozlowski, Bandarpalle B. Shankar, Neng-Yang Shih, Ling Tong
  • Cannabinoid receptor ligands
    Publication number: 20040010013
    Abstract: There are disclosed compounds of the formula I: 1
    Type: Application
    Filed: November 12, 2002
    Publication date: January 15, 2004
    Applicant: Schering Corporation
    Inventors: Richard J. Friary, Joseph A. Kozlowski, Bandarpalle B. Shankar, Michael K.C. Wong, Guowei Zhou, Brian J. Lavey, Neng-Yang Shih, Ling Tong, Lei Chen, Youheng Shu
  • Cannabinoid receptor ligands
    Publication number: 20030232859
    Abstract: The invention relates to compounds of the formula 1
    Type: Application
    Filed: August 7, 2002
    Publication date: December 18, 2003
    Applicant: Schering Corporation
    Inventors: Joseph A. Kozlowski, Neng-Yang Shih, Brian J. Lavey, Razia K. Rizvi, Bandarpalle B. Shankar, James M. Spitler, Ling Tong, Ronald L. Wolin, Michael K. Wong
  • Cannabinoid receptor ligands
    Publication number: 20030096844
    Abstract: There are disclosed compounds of the formula 1
    Type: Application
    Filed: February 6, 2002
    Publication date: May 22, 2003
    Applicant: Schering Corporation
    Inventors: Joseph A. Kozlowski, Neng-Yang Shih, Brian J. Lavey, Razia K. Rizvi, Bandarpalle B. Shankar, James M. Spitler, Ling Tong, Ronald L. Wolin, Michael K. Wong
  • Resin composition containing metal salt
    Patent number: 6294603
    Abstract: The present invention provides a metal salt-containing resin composition, which comprises (a) a hydrophilic polymer which is a polymer or copolymer of an ethylene oxide-containing monomer, and (b) 0.1 to 30% of a metal salt, based on the weight of the hydrophilic polymer. The resin composition of the present invention has long lasting antistatic properties and a lower surface resistivity than the hydrophilic polymer alone.
    Type: Grant
    Filed: August 8, 2000
    Date of Patent: September 25, 2001
    Assignee: Industrial Technology Research Institute
    Inventors: Yuung-Ching Sheen, Pin-Sheng Wang, Mei-Ling Tong, Ya-Hui Lin, Juh-Shyong Lee
  • Method for the cleaning and direct bonding of solids
    Patent number: 5915193
    Abstract: Cleaning in periodic acid (H.sub.5 IO.sub.6) aqueous solutions (HI solutions) of particular compositions removes thermally unstable hydrocarbons from the surfaces of semiconductor wafers and enables the direct bonding of semiconductor surfaces such that the bonded interface between these surfaces remains free of bubbles even after heating subsequent to bonding.
    Type: Grant
    Filed: May 18, 1995
    Date of Patent: June 22, 1999
    Inventors: Qin-Yi Tong, Ulrich Goesele, Ling Tong
  • Flow-injection gradient dilution for obtaining UV spectra of concentrated solutions
    Patent number: 5801820
    Abstract: The invention relates to methods and apparatus for precise dilution of concentrated samples enabling their spectra to be obtained. The spectra thus obtained may then be used for calculation of the aromatic hydrocarbon content in the concentrated samples. This invention comprises an arrangement of computer-controlled pumps, an injection valve, a mixing chamber, a flow cell (these components are known as "the manifold") and a scanning spectrophotometer, with a sophisticated computational software program. The arrangement generates a reproducible, well-defined gradient from a concentrated sample which is continuously scanned and, using the computational software, allows the spectrum of the sample to be derived, even where the majority of the spectrum for the undiluted sample has an absorbance greater than the upper measurable limit of the spectrophotometer.
    Type: Grant
    Filed: March 19, 1996
    Date of Patent: September 1, 1998
    Assignee: Shell Oil Company
    Inventors: Stephen Robert Bysouth, Victor Pak-Ling Tong