Patents by Inventor Gopal Krishan Sachdev

Gopal Krishan Sachdev 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).

  • Fixed focus handy ovulation tester
    Patent number: 7369331
    Abstract: The present invention provides a fixed focus handy ovulation tester, the said ovulation tester comprising an inner casing (1), having a top and a bottom end; a controllable 5 illuminating assembly (2) located inside the inner casing and near the bottom end of the inner casing and being sealed at the bottom by a bottom face plate (3) and a fixed focus eye piece assembly (4) having a bottom inner portion for placing a biological specimen and a top outer portion for viewing the specimen being removably located at the top end of the inner casing.
    Type: Grant
    Filed: February 20, 2004
    Date of Patent: May 6, 2008
    Inventors: Gopal Krishan Sachdev, Harinder Preet Singh Bakshi