Patents by Inventor Que N. Phan

Que N. Phan 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).

  • Basic mathematics teaching and learning aid
    Patent number: 6579101
    Abstract: A basic mathematics teaching and learning aid comprises of nine arrays of square spaces placed with powers of 10 from 10−4 to 106, numbers formed by repeated addition of some of those powers of ten, and other numbers. Dot and dash are in some of square spaces. Numbers, sign, arrows, mathematical symbols, percentages, equations and condition are in open spaces among the arrays. Formation, presentation and relations among these numbers, dots, dashes, sign, arrows, mathematical symbols, percentages, equations and condition are primarily used as an aid in teaching and learning fundamental areas of basic mathematics which mainly includes numbers in base-ten number system, addition, subtraction, multiplication, division, relations of a number of n with zero (number 0) in mathematical operations, whole numbers, fractions, and percentage.
    Type: Grant
    Filed: May 1, 2001
    Date of Patent: June 17, 2003
    Inventor: Que N. Phan
  • Basic mathematics teaching and learning aid
    Publication number: 20020009697
    Abstract: A basic mathematics teaching and learning aid comprises of nine arrays of square spaces placed with powers of 10 from 10−4 to 106, numbers formed by repeated addition of some of those powers of ten, and other numbers. Dot and dash are in some of square spaces. Numbers, sign, arrows, mathematical symbols, percentages, equations and condition are in open spaces among the arrays. Formation, presentation and relations among these numbers, dots, dashes, sign, arrows, mathematical symbols, percentages, equations and condition are primarily used as an aid in teaching and learning fundamental areas of basic mathematics which mainly includes numbers in base-ten number system, addition, subtraction, multiplication, division, relations of a number of n with zero (number 0) in mathematical operations, whole numbers, fractions, and percentage.
    Type: Application
    Filed: May 1, 2001
    Publication date: January 24, 2002
    Inventor: Que N. Phan