Patents by Inventor Mark Tsang

Mark Tsang 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).

  • Patent number: 10307682
    Abstract: A system of determining winners of a contest through a progressive cascade of elimination sub-contests is provided. The system comprises means for a user to select a contest from a plurality of contests, means for a user to join a contest room of a contest so as to enable the user to participate the contest and join the contest room, means for the user to vote on other contestants' submitted contestant items, means for determining winners of a contest room, and means for enabling winners to move onto a higher level of the participated contest.
    Type: Grant
    Filed: September 12, 2017
    Date of Patent: June 4, 2019
    Inventor: Mark Tsang
  • Publication number: 20180001213
    Abstract: A system of determining winners of a contest through a progressive cascade of elimination sub-contests is provided. The system comprises means for a user to select a contest from a plurality of contests, means for a user to join a contest room of a contest so as to enable the user to participate the contest and join the contest room, means for the user to vote on other contestants' submitted contestant items, means for determining winners of a contest room, and means for enabling winners to move onto a higher level of the participated contest.
    Type: Application
    Filed: September 12, 2017
    Publication date: January 4, 2018
    Inventor: Mark TSANG
  • Patent number: 9757656
    Abstract: A system of determining winners of a contest through a progressive cascade of elimination sub-contests is provided. The system comprises means for a user to select a contest from a plurality of contests, means for a user to join a contest room of a contest so as to enable the user to participate the contest and join the contest room, means for the user to vote on other contestants' submitted contestant items, means for determining winners of a contest room, and means for enabling winners to move onto a higher level of the participated contest.
    Type: Grant
    Filed: February 10, 2014
    Date of Patent: September 12, 2017
    Inventor: Mark Tsang
  • Publication number: 20140228125
    Abstract: A system of determining winners of a contest through a progressive cascade of elimination sub-contests is provided. The system comprises means for a user to select a contest from a plurality of contests, means for a user to join a contest room of a contest so as to enable the user to participate the contest and join the contest room, means for the user to vote on other contestants' submitted contestant items, means for determining winners of a contest room, and means for enabling winners to move onto a higher level of the participated contest.
    Type: Application
    Filed: February 10, 2014
    Publication date: August 14, 2014
    Inventor: Mark Tsang
  • Patent number: 6656387
    Abstract: In accordance with the present invention, a basic material, preferably ammonia, is injected into the stream of soot water leaving the gasification reactor prior to being processed in a filtration-type soot removal unit. The elevated pH of the soot water causes more metals to remain in the filter cake. Thus, the metals content of the grey water is reduced. More grey water can then be recycled back to the gasification unit, with less grey water being handled by the wastewater treatment unit.
    Type: Grant
    Filed: September 10, 2001
    Date of Patent: December 2, 2003
    Assignee: Texaco Inc.
    Inventor: Chih-Hao Mark Tsang
  • Publication number: 20030047716
    Abstract: In accordance with the present invention, a basic material, preferably ammonia, is injected into the stream of soot water leaving the gasification reactor prior to being processed in a filtration-type soot removal unit. The elevated pH of the soot water causes more metals to remain in the filter cake. Thus, the metals content of the grey water is reduced. More grey water can then be recycled back to the gasification unit, with less grey water being handled by the wastewater treatment unit.
    Type: Application
    Filed: September 10, 2001
    Publication date: March 13, 2003
    Applicant: Texaco Inc.
    Inventor: C. Mark Tsang
  • Patent number: 5972205
    Abstract: Disclosed is a novel binary sieve catalyst useful for olefin upgrading and fluid catalytic cracking which comprisesa crystalline zeolite metallosilicate core and a shell selected from an aluminum phosphate molecular sieve (AlPO.sub.4), a silicon-substituted aluminophosphate (SAPO), a metal aluminophosphate (MeAPO), and a crystalline metal aluminophosphate (MeAPSO) and is generally synthesized by a method comprising:adding a powdered form of crystalline zeolite metallosilicate into an aqueous slurry comprising phosphoric acid, alumina source, metal salt and an amine, mixing the slurry for 1 to 12 hours in a Teflon liner at room temperature, sealing said slurry in an autoclave and placing said slurry in an oven at 130.degree. C. to 240.degree. C. for 12-168 hours to form said binary molecular sieve catalyst, washing and drying the product, calcining the product at 530 to 570.degree. C. in nitrogen for 5-15 hours, calcining the product in air for 1 to 3 hours to burn off the template.
    Type: Grant
    Filed: May 20, 1998
    Date of Patent: October 26, 1999
    Assignee: ABB Lummus Global Inc.
    Inventors: Chih-Hao Mark Tsang, Pei-Shing Eugene Dai, Randall Hughes Petty
  • Patent number: 5888921
    Abstract: Disclosed is a novel binary sieve catalyst useful for olefin upgrading and fluid catalytic cracking which comprises a crystalline zeolite metallosilicate core and a shell selected from an aluminum phosphate molecular sieve (AlPO.sub.4), a silicon-substituted aluminophosphate (SAPO), a metal aluminophosphate (MeAPO), and a crystalline metal aluminophosphate (MeAPSO) and is generally synthesized by a method comprising:adding a powdered form of crystalline zeolite metallosilicate into an aqueous slurry comprising phosphoric acid, alumina source, metal salt and an amine, mixing the slurry for 1 to 12 hours in a Teflon liner at room temperature, sealing said slurry in an autoclave and placing said slurry in an oven at 130.degree. C. to 240.degree. C. for 12-168 hours to form said binary molecular sieve catalyst, washing and drying the product, calcining the product at 530.degree. to 570.degree. C. in nitrogen for 5-15 hours, calcining the product in air for 1 to 3 hours to burn off the template.
    Type: Grant
    Filed: October 25, 1995
    Date of Patent: March 30, 1999
    Assignee: ABB Lummus Global Inc.
    Inventors: Chih-Hao Mark Tsang, Pei-Shing Eugene Dai, Randall Hughes Petty
  • Patent number: 5702589
    Abstract: Disclosed is a process for converting olefinic hydrocarbons using spent FCC catalysts which comprises using spent FCC catalysts, optionally containing spent FCC additives, in the reactor/stripper part of the FCCU, instead of or in addition to a separate olefin upgrader, to upgrade C.sub.2 -C.sub.8 oligomerizable olefins, preferably propylene and ethylene, into C.sub.4 /C.sub.5 olefins and isoparaffins as well as gasoline, wherein feedstock can be product streams of the FCCU containing propylene/ethylene such as, for example, the absorber and depropanizer overheads.
    Type: Grant
    Filed: July 3, 1996
    Date of Patent: December 30, 1997
    Assignee: ABB Lummus Global Inc.
    Inventors: Chih-Hao Mark Tsang, Randall Hughes Petty, Glenn Allen Clausen, Charles Henry Schrader