Patents by Inventor C. S. Chung

C. S. Chung 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: 6132688
    Abstract: A method and apparatus for treating exhaust gas from a semiconductor fabrication machine by utilizing a dual-stage apparatus are disclosed. The dual-stage apparatus utilizes a first stage treatment of a condensation unit for removing high boiling temperature contents in the exhaust gas and a second stage treatment in fluid communication with the first stage treatment of an absorption unit for removing low boiling temperature contents in the exhaust gas or contents that were not previously removed in the first stage treatment. The condensation unit can be operated efficiently at a temperature range between about 5.degree. C. and about 15.degree. C., while the partially-treated exhaust gas exiting the condensation unit can be pre-heated to a temperature between about 20.degree. C. and about 40.degree. C. prior to entering the absorption unit for removal of the low boiling temperature contents.
    Type: Grant
    Filed: May 6, 1998
    Date of Patent: October 17, 2000
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: J. S. Hsiue, B. H. Yang, T. J. Fang, J. J. Wang, W. C. Lee, T. D. Chang, C. S. Chung, W. F. Chuang
  • Patent number: 4808330
    Abstract: A detergent composition harmless to human body and animals. More particularly, the present invention discloses a detergent composition comprising form 15 to 30 weight percent of sodium chloride, form 10 to 35 weight percent of organic alcohol, from 8 to 25 weight percent of coconut oil and the balance essentially water. The detergent composition of the present invention is effective in removing pollutants such as residual toxicity, bacteria and fungi from the surface of foods such as vegetables and fruit. The detergent composition of the present invention is also effective in inhibiting the growth of bacteria and fungi.
    Type: Grant
    Filed: April 26, 1988
    Date of Patent: February 28, 1989
    Inventor: C. S. Chung