Patents by Inventor Warren Henry Philipp

Warren Henry Philipp 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).

  • Binder system and method for particulate material cross-reference to related application
    Patent number: 6846862
    Abstract: The present invention relates to a binder composition comprising an aliphatic polyester polymer: an ethylenebisamide wax; and a guanidine wetting agent. The composition may also contain an additive which accelerates or extends debinding of the binder composition, and to a method for forming a sintered part by powder injection molding, including the steps of forming a green composition comprising a binder and an inorganic powder, wherein the binder is a composition comprising an aliphatic polyester polymer, an ethylenebisamide wax, and a guanidine wetting agent, and may further include an additive which accelerates or delays completion of debinding of the binder; melting the composition; injecting the composition into a mold for a part; heating the part to a temperature at which the binder decomposes; heating the part to a temperature at which the inorganic powder is sintered.
    Type: Grant
    Filed: June 22, 2001
    Date of Patent: January 25, 2005
    Assignee: Apex Advanced Technologies, LLC
    Inventors: Karl-Heinz Schofalvi, Dennis Lee Hammond, Warren Henry Philipp
  • Binder system and method for particulate material cross-reference to related application
    Publication number: 20030220424
    Abstract: The present invention relates to a binder composition comprising an aliphatic polyester polymer; an ethylenebisamide wax; and a guanidine wetting agent. The composition may also contain an additive which accelerates or extends debinding of the binder composition, and to a method for forming a sintered part by powder injection molding, including the steps of forming a green composition comprising a binder and an inorganic powder, wherein the binder is a composition comprising an aliphatic polyester polymer, an ethylenebisamide wax, and a guanidine wetting agent, and may further include an additive which accelerates or delays completion of debinding of the binder; melting the composition; injecting the composition into a mold for a part; heating the part to a temperature at which the binder decomposes; heating the part to a temperature at which the inorganic powder is sintered.
    Type: Application
    Filed: April 14, 2003
    Publication date: November 27, 2003
    Inventors: Karl-Heinz Schofalvi, Dennis Lee Hammond, Warren Henry Philipp