Patents by Inventor John P. Valentine

John P. Valentine 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).

  • Solvent composition for the removal of acid gas from gas mixtures at subfreezing temperatures
    Patent number: 4581154
    Abstract: A new solvent comprising a mixture of dialkyl ethers of polyalkylene glycols of the formula: CH.sub.3 O (C.sub.2 H.sub.4 O) x CH.sub.3 wherein x is 3 to 8 and having a molecular weight of 200 to 255 is disclosed. This solvent system is particularly suitable for use in removing acidic components from gas mixtures in subfreezing temperatures.
    Type: Grant
    Filed: April 22, 1985
    Date of Patent: April 8, 1986
    Assignee: Norton Company
    Inventors: George S. Kutsher, John P. Valentine