Patents by Inventor Robert B. Adler

Robert B. Adler 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).

  • Drill tip and threaded fastener
    Patent number: 4064784
    Abstract: A drill tip formed from two elements, each being one-half of a concave-convex spade-like element, the elements being joined integrally, the elements presenting a cutting edge which is a continuous curve extending from one side of the tip to the other through the pilot end of the tip.
    Type: Grant
    Filed: December 19, 1975
    Date of Patent: December 27, 1977
    Inventor: Robert B. Adler