Patents by Inventor Feng Ling

Feng Ling 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: 5885419
    Abstract: Methods for inhibiting the deposition of organic contaminants from pulp in pulp and papermaking systems are disclosed. Albumins, globulins or blends thereof and spray-dried animal blood cells are added to the pulp or sprayed onto deposition prone surfaces of a papermaking system suffering from organic contaminants.
    Type: Grant
    Filed: December 9, 1997
    Date of Patent: March 23, 1999
    Assignee: BetzDearborn Inc.
    Inventors: Duy T. Nguyen, Tien-Feng Ling
  • Patent number: 5825367
    Abstract: An apparatus is used to process an original digital image to obtain a uniformly scaled desired digital image, the original digital image having a number (N) of successive original image data while the desired digital image has a number (M) of successive desired image data. When (M) is greater than (N), linear interpolation of (n)th and (n+1)th ones of the original image data is performed to produce a residual interpolated image data inserted therebetween when division of (M-N) by (N-1) results in a remainder (S) and when (n) is a minimum number which meets a condition (n+1)*(S).gtoreq.(s)*(N), wherein (s) ranges from 1 to (S). When (M) is less than (N), an address generator controls a memory to output selected ones of the original image data. A succeeding original image data outputted by the memory is offset from an immediately preceding original image data outputted thereby by a number (V) or by a number (V+1), the number (V) being equal to a quotient that results from division of (N) by (M).
    Type: Grant
    Filed: July 23, 1996
    Date of Patent: October 20, 1998
    Assignee: Winbond Electronics Corp.
    Inventors: Rong-Fuh Shyu, Feng-Ling Chang
  • Patent number: 5746888
    Abstract: Methods for inhibiting the deposition of organic contaminants from pulp in pulp and papermaking systems are disclosed. Albumins, globulins or blends thereof and spray-dried animal blood cells are added to the pulp or sprayed onto deposition prone surfaces of a papermaking system suffering from organic contaminants.
    Type: Grant
    Filed: July 9, 1996
    Date of Patent: May 5, 1998
    Assignee: BetzDearborn Inc.
    Inventors: Duy T. Nguyen, Tien-Feng Ling
  • Patent number: 5621870
    Abstract: An apparatus is used to process an original digital image to obtain a uniformly scaled desired digital image, the original digital image having a number (N) of successive original image data while the desired digital image has a number (M) of successive desired image data. When (M) is greater than (N), linear interpolation of (n)th and (n+1)th ones of the original image data is performed to produce a residual interpolated image data inserted therebetween when division of (M-N) by (N-1) results in a remainder (S) and when (n) is a minimum number which meets a condition (n+1)*(S).gtoreq.(s)*(N), wherein (s) ranges from 1 to (S). When (M) is less than (N), an address generator controls a memory unit to output selected ones of the original image data. A succeeding original image data outputted by the memory unit is offset from an immediately preceding original image data outputted thereby by a number (V) or by a number (V+1), the number (V) being equal to a quotient that results from division of (N) by (M).
    Type: Grant
    Filed: July 26, 1995
    Date of Patent: April 15, 1997
    Assignee: Winbond Electronic Corp.
    Inventors: Rong-Fuh Shyu, Feng-Ling Chang
  • Patent number: 5556510
    Abstract: A method of inhibiting the deposition of organic contaminants in a pulp and papermaking system comprising adding to the system an effective amount of a detackifying composition comprising a charged polymer and an oppositely charged surfactant, with the proviso that at least the polymer or the surfactant be surface active.
    Type: Grant
    Filed: April 25, 1995
    Date of Patent: September 17, 1996
    Assignee: Betz Laboratories, Inc.
    Inventors: David D. Dreisbach, Mark E. Laurint, Tien-Feng Ling
  • Patent number: 5250152
    Abstract: A method for enhancing the penetration of cooking liquor into wood chips to form a Kraft pulp which comprises adding to the cooking liquor specific surfactants such as ethoxylated dialkylphenols and ethoxylated alcohols.
    Type: Grant
    Filed: July 14, 1992
    Date of Patent: October 5, 1993
    Assignee: Betz PaperChem, Inc.
    Inventors: Tien-Feng Ling, Theresa D. Hancock
  • Patent number: 5139616
    Abstract: In a papermaking operation which utilizes secondary fiber furnish containing hot melt or pressure sensitive adhesive contaminants, a method of inhibiting stickies comprising adding to the pulp slurry at least one surfactant selected from the group consisting of fatty alkanolamides and ethoxylated compounds in addition to a hydrocarbon solvent.
    Type: Grant
    Filed: May 29, 1991
    Date of Patent: August 18, 1992
    Assignee: Betz PaperChem, Inc.
    Inventor: Tien-Feng Ling