Patents by Inventor Ulrich Witten

Ulrich Witten 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).

  • Lubrication system for internal combustion engines (law952)
    Patent number: 6376435
    Abstract: A binary two phase engine oil composition having two substantially immiscible liquid phases exhibits improved fuel economy which is maintained over an extended period. The first liquid phase comprises a base oil, natural or synthetic. The second liquid phase is a polar organic liquid, preferably a complex alcohol ester, preferably derived from a polyol, a polybasic acid, and a monohydric alcohol.
    Type: Grant
    Filed: April 21, 2000
    Date of Patent: April 23, 2002
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Mahmoud Mostafa Hafez, Ulrich Witten, Paul Simon Woolley, Hiroki Kurosawa
  • Engine oil lubricants formed from complex alcohol esters
    Patent number: 5942475
    Abstract: A crankcase engine lubricant which comprises the add mixture of the following components: (A) a lubricating oil which comprises the add mixture of the following components: a complex alcohol ester basestock and at least one additional basestock; and (B) an additive package; wherein the crankcase engine lubricant exhibits a percent fuel economy improvement in the range between about 0.3 to 5.0%, versus the lubricating oil without the complex alcohol ester basestock.
    Type: Grant
    Filed: February 7, 1997
    Date of Patent: August 24, 1999
    Assignee: Exxon Chemical Patents Inc.
    Inventors: Richard H. Schlosberg, David Wayne Turner, Martin A. Krevalis, Fay H. Gordon, Ulrich Witten