Patents by Inventor Derek Andersen

Derek Andersen 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: 7905025
    Abstract: A stud marking device for easily and quickly marking locations of studs. The stud marking device includes a handle having a tubular base member having a pair of prong-like members extending outwardly from a bottom thereof, and further having three telescopic members slidably and lockingly extended within one another, and further includes a wheel being of many different sizes and being rotatably mounted to the prong-like members. As a first embodiment, the wheel has a bore radially extended through the circumference with a marker being threaded in the bore and having a marking end which extends outwardly beyond the circumference.
    Type: Grant
    Filed: January 7, 2000
    Date of Patent: March 15, 2011
    Inventor: Derek Andersen