Patents by Inventor Ralf Siebrecht

Ralf Siebrecht 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).

  • Method for producing a replication master, replication method and replication master
    Patent number: 8496863
    Abstract: In a method for producing a replication master (10) having a surface with low roughness, comprising the steps of forming said master (10) such as to have a desired external surface shape corresponding to a counterform of a surface of an object (18, 20) to be produced by replication and treating said external surface of said master (10) to obtain a predetermined surface roughness value, it is proposed that said method furthermore comprises the step of coating at least a part of said master (10) with a soluble smoothening layer (16). The invention further relates to a replication master (10) for producing a smooth object (18, 20) having a low surface roughness, wherein at least a part of said master (10) is coated with a soluble smoothening layer (16).
    Type: Grant
    Filed: November 29, 2004
    Date of Patent: July 30, 2013
    Assignee: Xenocs S.A.
    Inventors: Peter Hoghoj, Ralf Siebrecht, Sergio Rodrigues
  • Method for producing a replication master, replication method and replication master
    Publication number: 20070035068
    Abstract: In a method for producing a replication master (10) having a surface with low roughness, comprising the steps of forming said master (10) such as to have a desired external surface shape corresponding to a counterform of a surface of an object (18, 20) to be produced by replication and treating said external surface of said master (10) to obtain a predetermined surface roughness value, it is proposed that said method furthermore comprises the step of coating at least a part of said master (10) with a soluble smoothening layer (16). The invention further relates to a replication master (10) for producing a smooth object (18, 20) having a low surface roughness, wherein at least a part of said master (10) is coated with a soluble smoothening layer (16).
    Type: Application
    Filed: November 29, 2004
    Publication date: February 15, 2007
    Inventors: Peter Hoghoj, Ralf Siebrecht, Sergio Rodrigues