Patents by Inventor Thomas Christian Lehmann

Thomas Christian Lehmann 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: 7857557
    Abstract: A combination tool and method for metal-cutting machining of a drill-hole and its hole surface as well as cutting insert for such a combination tool.
    Type: Grant
    Filed: August 1, 2008
    Date of Patent: December 28, 2010
    Assignee: Kennametal Inc.
    Inventors: Thomas Christian Lehmann, Günter Alfred Ebert
  • Publication number: 20090080984
    Abstract: A combination tool and method for metal-cutting machining of a drill-hole and its hole surface as well as cutting insert for such a combination tool. The abstract of the disclosure is submitted herewith as required by 37 C.F.R. §1.72(b). As stated in 37 C.F.R. §1.72(b): A brief abstract of the technical disclosure in the specification must commence on a separate sheet, preferably following the claims, under the heading “Abstract of the Disclosure.” The purpose of the abstract is to enable the Patent and Trademark Office and the public generally to determine quickly from a cursory inspection the nature and gist of the technical disclosure. The abstract shall not be used for interpreting the scope of the claims. Therefore, any statements made relating to the abstract are not intended to limit the claims in any manner and should not be interpreted as limiting the claims in any manner.
    Type: Application
    Filed: August 1, 2008
    Publication date: March 26, 2009
    Inventors: Thomas Christian Lehmann, Gunter Alfred Ebert