Patents by Inventor An-Chung R. Lin

An-Chung R. Lin 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).

  • Ball point pen, ink and its eradicator system
    Patent number: 4213717
    Abstract: Disclosed is a ball point ink pen, its ink and its eradicator. The ink is carried at one end of the pen and the eradicator portion is carried at the other. If an error is made, the pen can be reversed and the eradicator used to neutralize the ink. The ink also neutralizes the eradicator so that when one rewrites with the same ink, any remaining eradicator on the paper is neutralized and the original ink acts as fresh ink.
    Type: Grant
    Filed: November 13, 1978
    Date of Patent: July 22, 1980
    Assignee: Burroughs Corporation
    Inventor: An-Chung R. Lin
  • Acid indicator based high saturation sympathetic ink having time delayed disappearance
    Patent number: 4171982
    Abstract: Disclosed is an ink that is intensely colored in solution with the vehicle of the ink. The ink "disappears" or becomes invisible to the naked eye after a period of time has elapsed from the application of the ink to a record document, the ink being utilized to identify an unsatisfactory character on a document such as a MICR check which has had an erroneous character printed which must be corrected before being correctly machine read.
    Type: Grant
    Filed: May 13, 1977
    Date of Patent: October 23, 1979
    Assignee: Burroughs Corporation
    Inventor: An-Chung R. Lin
  • Cyanine dye based high saturation sympathetic ink having time delayed disappearance
    Patent number: 4162164
    Abstract: Disclosed is an ink that is intensely colored in solution with the vehicle of the ink. The ink "disappears" or becomes invisible to the naked eye after a period of time has elapsed from the application of the ink to a record document. The ink being utilized to identify an unsatisfactory character on a document such as a MICR check which has had an erroneous character printed which must be corrected before being correctly machine read.
    Type: Grant
    Filed: May 13, 1977
    Date of Patent: July 24, 1979
    Assignee: Burroughs Corporation
    Inventor: An-Chung R. Lin
  • Ball point pen, ink and its eradicator system
    Patent number: 4156657
    Abstract: Disclosed is a ball point ink pen, its ink and its eradicator. The ink is carried at one end of the pen and the eradicator portion is carried at the other. If an error is made, the pen can be reversed and the eradicator used to neutralize the ink. The ink also neutralizes the eradicator so that when one rewrites with the same ink, any remaining eradicator on the paper is neutralized and the original ink acts as fresh ink.
    Type: Grant
    Filed: April 4, 1977
    Date of Patent: May 29, 1979
    Assignee: Burroughs Corporation
    Inventor: An-Chung R. Lin