Patents by Inventor Heng Dai

Heng Dai 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: 20240109057
    Abstract: The present invention is related to a process for the preparation of zeolitic material through condensed gel crystallizations and their use in an FCC Catalyst composition. The present disclosure describes methods for improved preparation of zeolites by preparing an aqueous precursor mixture; removing at least 5 wt % of the total water from the aqueous precursor solution to create a solution with greater solids content; crystallizing the solution of step (b) to create a zeolite product. The resulting zeolite is used in an FCC catalyst composition comprising about 2 to about 80 wt % one or more zeolite, about 15 to about 50 wt % quasicrystalline boehmite, about 0 to about 50 wt % microcrystalline boehmite, and greater than about 0 to about 25 wt % silica.
    Type: Application
    Filed: January 14, 2022
    Publication date: April 4, 2024
    Inventors: Daniel EVANS, James J STROHM, Heng DAI
  • Publication number: 20240066508
    Abstract: The present invention is related to a process for the preparation of zeolitic material through condensed gel crystallizations and their use in an FCC Catalyst Additive composition. The present disclosure describes methods for improved preparation of zeolites by preparing an aqueous precursor mixture; removing at least 5 wt % of the total water from the aqueous precursor solution to create a solution with greater solids content; crystallizing the solution of step (b) to create a zeolite product. The resulting zeolite is used in an FCC Catalyst Additive composition comprising about 10 to about 70% wt % one or more zeolites, 0 wt % to about 25 wt % silica; 0 to about 50 wt % added alumina; and 0 to about 20% P2O5.
    Type: Application
    Filed: January 14, 2022
    Publication date: February 29, 2024
    Inventors: Daniel EVANS, James J STROHM, Heng DAI
  • Publication number: 20230077288
    Abstract: A secondary growth procedure described herein is used to prepare finned zeolites. The finned zeolites possess properties that are distinctly unique compared to crystals of similar size lacking fins. The procedure is amenable to a wide range of zeolite crystal structures.
    Type: Application
    Filed: February 9, 2021
    Publication date: March 9, 2023
    Applicant: University of Houston System
    Inventors: Jeffrey D. Rimer, Yufeng Shen, Heng Dai
  • Publication number: 20220275435
    Abstract: The present invention provides a multiplex ligation-dependent probe microarray detection. Specifically, a surface probe-based quantitative PCR detection system in the present invention comprises: (a) a solid phase carrier; (b) a first probe; (c) a second probe; (d) a ligase for ligating the first probe and the second probe to form a third probe; (e) a quenching primer pair for amplifying the third probe; and (f) a quenching product capture nucleic acid immobilized on the solid phase carrier and matching a quenching amplification product. The present invention further provides a corresponding detection method and detection apparatus, and applications thereof. The present invention can rapidly, easily, efficiently, and simultaneously perform quantitative detection on multiple target sequences.
    Type: Application
    Filed: July 21, 2020
    Publication date: September 1, 2022
    Applicant: FLASHDX SHENZHEN INC.
    Inventors: Min YUE, Heng DAI
  • Publication number: 20080124741
    Abstract: Canine CCK1 receptor materials are described, such as polypeptides having amino acid sequences corresponding to SEQ ID Nos.: 14, 15, and 16 or functional variants thereof and polynucleotides expressing them having nucleic acid sequences corresponding to SEQ ID Nos.: 11, 12, and 13 or complements thereof. Such materials are useful as reagents in drug screening assays to identify compounds having CCK1R-modulating activity.
    Type: Application
    Filed: October 11, 2005
    Publication date: May 29, 2008
    Inventors: Heng Dai, Magda F. Morton, Jayashree Pyati, Nigel P. Shankley
  • Publication number: 20030036857
    Abstract: The present invention relates to methods and systems for database comparison and database searching and matching, and specifically to database comparison and database searching and matching of databases containing biomolecular sequences as well as databases comprising matched sequences, as well as the use of databases comprising matched biomolecular sequences. In addition, a database comprising matched sequences or a database comprising matched biomolecular sequences may be accessed via a graphical user interface.
    Type: Application
    Filed: August 1, 2002
    Publication date: February 20, 2003
    Inventors: Xiang Yao, Heng Dai, Albert Leung, Bin Tian, Wei D. Zhao, Xuejun Liu, Joseph Ciervo, Simon R. Smith, Jackson S. Wan