Patents by Inventor Steven A. Stolk

Steven A. Stolk 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).

  • Aluminium electroplating solution
    Patent number: 4381975
    Abstract: Electrolyte liquid for the electrodeposition of aluminium, containing lithium hydride and/or lithium aluminium hydride and at least one aluminium halide dissolved in tetrahydrofuran or halogen and/or methyl derivatives, the molar ratio between the Al-halide and the lithium aluminium hydride being in excess of 3. In addition, this bath contains an alkali metal aluminium chloride. This liquid is conspicuous for its high conductivity and its great stability.
    Type: Grant
    Filed: January 18, 1982
    Date of Patent: May 3, 1983
    Assignee: U.S. Philips Corporation
    Inventors: Theo E. G. Daenen, Gerardus A. R. van Dijk, Steven A. Stolk
  • Aluminum electroplating solution
    Patent number: 4379030
    Abstract: Electrolyte liquid for the electrodeposition of aluminum, consisting of a solution of a ligand of one or more aluminum halohydrides in an aprotic solvent. The ligand is, for example, tetrahydrofuran or triethylamine. This liquid makes it possible to deposit ductile aluminum up to high current densities.
    Type: Grant
    Filed: January 18, 1982
    Date of Patent: April 5, 1983
    Assignee: U.S. Philips Corporation
    Inventors: Theo E. G. Daenen, Gerardus A. R. Van Dijk, Steven A. Stolk
  • Electrolyte-liquid for the electrodeposition of aluminum
    Patent number: 4145261
    Abstract: Electrolyte-liquid for electro-depositing aluminum. The liquid comprises an aprotic solvent with ether structure, a second aprotic solvent which is inert or which is capable of forming a coordinative compound, anhydrous aluminum chloride and a metal hydride.The solvent with ether structure has the formula RO -- (CH.sub.2).sub.m -- O -- (CH.sub.2).sub.n -- OR' wherein m and n are integers between 1 and 6 and R and R' are alkyl groups.
    Type: Grant
    Filed: February 27, 1978
    Date of Patent: March 20, 1979
    Assignee: U.S. Philips Corporation
    Inventors: Theo E. G. Daenen, Steven A. Stolk