Patents by Inventor Joseph Martel, Jr.

Joseph Martel, Jr. 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 and apparatus for an equation editor
    Patent number: 5251292
    Abstract: A method and apparatus carried out on a digital computer for creating and editing mathematical equations in a printed document is disclosed. This invention allows the user of a wordprocessing program to create and edit mathematical equations in an efficient and flexible manner through use of a user interface which includes an editing window, a display window, and a palette window. The editing window allows the user to input a textual description of the equation, the palette window provides an alternative method of entering the textual description of the equation by displaying the characters and commands that may be used, and the display window displays the equation as it appears in its final printed form.
    Type: Grant
    Filed: July 25, 1990
    Date of Patent: October 5, 1993
    Assignee: WordPerfect Corporation
    Inventors: Joseph Martel, Jr., David C. Moon