Patents by Inventor Yongxiang Wang

Yongxiang Wang 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).

  • Bacillus sp. A30-1 ATCC no. 53841
    Patent number: 5166069
    Abstract: A thermostable lipase is produced by aerobically culturing a microorganism having the identifying characteristics of Bacillus sp.A30-1 ATCC No. 53841 on a nutrient medium under growth conditions until a recoverable lipolytic activity is detectable and thereafter isolating the thermostable lipase. The thermostable lipase has an optimum temperature of about 60.degree. C. and an optimum pH of about 9.5.
    Type: Grant
    Filed: November 25, 1991
    Date of Patent: November 24, 1992
    Assignee: Michigan Biotechnology Institute
    Inventors: Gwo-Jenn Shen, Kailash C. Srivastava, Yongxiang Wang, Henry Y. Wang
  • Essentially purified, thermostable and alkalophilic lipase from Bacillus Sp. A30-1 ATCC 53841
    Patent number: 5093256
    Abstract: A thermostable lipase is produced by aerobically culturing a microorganism having the identifying characteristics of Bacillus sp. A30-1 ATCC No. 53841 on a nutrient medium under growth conditions until a recoverable lipolytic activity is detectable and thereafter isolating the thermostable lipase. The thermostable lipase has an optimum pH of 9.5, an isoelectric point of 5.15, a molecular weight of about 65,000 and retaining approximately 100% of its original activity upon being heated at 75.degree. C. for 30 minutes.
    Type: Grant
    Filed: February 22, 1989
    Date of Patent: March 3, 1992
    Inventors: Gwo-Jenn Shen, Kailash C. Srivastava, Yongxiang Wang, Henry Y. Wang