Patents by Inventor Leo Wan

Leo Wan 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).

  • PCR-based method for generating multisite saturation mutagenic DNA libraries
    Patent number: 10570386
    Abstract: Disclosed herein is a novel method for multisite saturation mutagenesis. Provided in the instant disclosure is a means of generating genetic diversity at each desired codon position within the coding sequence of a gene using a multi-oligonucleotide primer pool and Gibson assembly approach where a mutant DNA library can be cloned into a target vector.
    Type: Grant
    Filed: September 27, 2017
    Date of Patent: February 25, 2020
    Assignee: RANOMICS INC.
    Inventors: Leo Wan, Christina Yeh
  • PCR-BASED METHOD FOR GENERATING MULTISITE SATURATION MUTAGENIC DNA LIBRARIES
    Publication number: 20190382754
    Abstract: Disclosed herein is a novel method for multisite saturation mutagenesis. Provided in the instant disclosure is a means of generating genetic diversity at each desired codon position within the coding sequence of a gene using a multi-oligonucleotide primer pool and Gibson assembly approach where a mutant DNA library can be cloned into a target vector.
    Type: Application
    Filed: September 27, 2017
    Publication date: December 19, 2019
    Inventors: Leo Wan, Christina Yeh
  • Adhesion promotion
    Publication number: 20090196999
    Abstract: Methods for etching nickel and nickel alloy layers are disclosed. The etching compositions include inorganic acids and heterocyclic nitrogen compounds. Additionally, the etching methods may include anodic etching of the nickel or nickel alloy layer. The methods may be used in semiconductor packaging manufacture.
    Type: Application
    Filed: December 10, 2008
    Publication date: August 6, 2009
    Applicant: Rohm and Haas Electronic Materials LLC
    Inventors: Andre Egli, Leo Wan, Ted Wong