Patents by Inventor Chan Wang BOHACHEFF

Chan Wang BOHACHEFF 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).

  • Publication number: 20190164450
    Abstract: Math worksheets are described herein having design and technical features for teaching accurate number positioning for various mathematical operations. For example, a math worksheet comprises a medium having one or more equation modules marked thereon, an equation module comprising horizontal lines defining adjacent rows. Columns divide the adjacent rows into blocks in which numbers or portions thereof are to be written, wherein the columns have width less than width of the blocks and provide spacing between individual numbers and mathematical operators.
    Type: Application
    Filed: April 7, 2017
    Publication date: May 30, 2019
    Inventor: Chan Wang BOHACHEFF
  • Publication number: 20170098383
    Abstract: An aid for practicing handwriting is described herein. In some embodiments, the handwriting aid comprises a medium having one or more writing bands marked thereon, a writing band including horizontal lines defining adjacent rows. Columns divide the adjacent rows into blocks in which letters or portions thereof are to be written, wherein the columns have width less than width of the blocks and provide spacing between the letters. The blocks can have uniform width and height for consistent letter size.
    Type: Application
    Filed: February 8, 2016
    Publication date: April 6, 2017
    Inventor: Chan Wang BOHACHEFF