Patents by Inventor Richardo A. Bloch

Richardo A. Bloch 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).

  • Amide containing friction modifier for use in power transmission fluids
    Patent number: 5395539
    Abstract: Friction modifier additives useful in power transmission compositions, particularly automatic transmission fluids, is disclosed. The additive comprises Component-1 alone formed by condensing a polyamine, such as tetraethylene pentamine, with an aliphatic mono acid, such as isostearic acid, or a mixture, and/or salt, of Component-1 and a Component-2 wherein Component-2 is an acid ester formed by reacting a heterodialkanol such as thiobisethanol and a hydrocarbyl substituted dicarboxylic acid or anhydride, such as octadecenyl succinic anhydride.
    Type: Grant
    Filed: March 15, 1993
    Date of Patent: March 7, 1995
    Assignee: Exxon Chemical Patents Inc.
    Inventors: John E. Chandler, Antonio Gutierrez, Jack Ryer, Yasuhiko Yoneto, Richardo A. Bloch, Raymond F. Watts, Robert D. Lundberg