Patents by Inventor Robertus J. M. Van Vucht

Robertus J. M. Van Vucht 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).

  • Method of detecting a marker provided on a specimen
    Patent number: 4977328
    Abstract: In a method of detecting a marker by means of an electron beam system, the detection time can be minimized for predetermined accuracy specifications by making a choice between a correlation search method and a level search method, which choice is co-determined by marker properties. The use of a correction value for calculating the correlation values reduces the risk of incorrect marker identification.
    Type: Grant
    Filed: February 26, 1990
    Date of Patent: December 11, 1990
    Assignee: U.S. Philips Corporation
    Inventor: Robertus J. M. Van Vucht