Patents by Inventor Marvin F. Smith, Jr.

Marvin F. Smith, Jr. 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).

  • Patent number: 4966722
    Abstract: Oil compositions comprising a lubricating oil and oil-soluble ethylene-alpha-olefin copolymer viscosity index improvers are substantially haze-free when said compositions contain an anti-hazing effective amount of a hydrocarbyl substituted succinic acid. The ethylene-alpha-olefin copolymer comprises intramolecularly heterogeneous and intermolecularly homogeneous copolymer chains containing at least one crystallizable segment of methylene units and at least one low crystallinity ethylene-alpha-olefin copolymer segment, wherein said at least one crystallizable segment comprises at least about 10 weight percent of said copolymer chain and contains at least about 57 weight percent ethylene, wherein said low crystallinity segment contains not greater than about 53 weight percent ethylene, and wherein said copolymer has a molecular weight distribution characterized by at least one of a ratio of M.sub.w /M.sub.n of less than 2 and a ratio of M.sub.z /M.sub.w of less than 1.
    Type: Grant
    Filed: November 16, 1988
    Date of Patent: October 30, 1990
    Assignee: Exxon Chemical Patents Inc.
    Inventor: Marvin F. Smith, Jr.
  • Patent number: 4908146
    Abstract: Oil compositions comprising a lubricating oil and oil-soluble hydrocarbon polymeric viscosity index improvers such as ethylene-propylene copolymers are substantially haze-free when said compositions contain an anti-hazing effective amount of a hydrocarbyl substituted succinic acid. The invention also relates to the process for preparing said compositions.
    Type: Grant
    Filed: November 16, 1988
    Date of Patent: March 13, 1990
    Assignee: Exxon Chemical Patents Inc.
    Inventor: Marvin F. Smith, Jr.
  • Patent number: 4373733
    Abstract: A reactionary human silhouette targer for shooters is disclosed which gives instantaneous visual and audible reaction to being struck whereby by watching the target and listening, the area of the target which is struck may be determined. The target comprises the upper torso and arms of a person with a body-like front contour, the target mounted on an upright stand. In connecting the target to the stand, a four directional pivot means is provided, together with means to return the target to its original position once moved, the target reacting by pivoting in the direction in which it is struck, and for the instant of being struck in a central target area, the target then raises vertically. Additionally, indication by a different sounding noise is given for different portions of the target being struck.
    Type: Grant
    Filed: May 13, 1981
    Date of Patent: February 15, 1983
    Inventor: Marvin F. Smith, Jr.