Patents by Inventor Margaret Sakai

Margaret Sakai 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).

  • Patent number: 4443199
    Abstract: A method of teaching the pronounciation and spelling and distinguishing between the written and spoken form of any language utilizes three sets of flat tiles which are: a first set of uncolored black and white tiles with small letters, capitals and double letters, all on separate tiles; a second set of tiles, each having an individually and distinctively colored blank surface on one side to represent a different phonetic vowel sound and also colors to represent differences in spelling, the reverse side of each colored tile having a phonetic symbol for the sound of the color on the other side surface; and a third set of tiles having, printed thereon, single letter consonants and two letter digraph combinations of consonants with a single phonetic sound. There is a fourth set of tiles of special geometric shapes for particular consonants and digraphs, while a fifth set of neutral-colored black or white tiles represents silent or unpronounced letters in a formed work.
    Type: Grant
    Filed: May 18, 1982
    Date of Patent: April 17, 1984
    Inventor: Margaret Sakai