Patents by Inventor Noel A. Walker

Noel A. Walker 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).

  • yeast strains expressing an HMG-CoA reductase having increased activity or expression
    Patent number: 11952577
    Abstract: Provided herein compositions and methods for producing isoprenoids, including squalene. In certain aspects and embodiments provided are genetically converted yeast and uses therefore. In some aspects and embodiments, the genetically converted yeast produce isoprenoids, preferably squalene. Also are provided methods of producing squalene using a genetically converted yeast or a non-genetically converted yeast. The invention also provides squalene produced by genetically converted yeast or non-genetically converted yeast.
    Type: Grant
    Filed: January 9, 2017
    Date of Patent: April 9, 2024
    Assignee: NUCELIS LLC
    Inventors: Keith A. Walker, Mark E. Knuth, Noel M. Fong, Peter R. Beetham
  • Engine oil monitoring system having an in-vehicle display of the current status of the oil
    Patent number: 5382942
    Abstract: An oil monitoring system storing a remaining percent tachometer oil life, a remaining percent time oil life and a remaining percent odometer oil life. The oil monitoring system has means for selecting and displaying the lowest of these three remaining percent oil life values as the lowest remaining percent oil life. The selected lowest remaining percent oil life is compared to predetermined percentages to display on an in-vehicle display if the oil is OK, if the oil is to be changed soon, or if an oil change is required. The oil monitoring system may include an oil dielectric constant sensor and display if the oil is to be changed soon or an oil change is required as a function in the change in the oil's dielectric constant.
    Type: Grant
    Filed: July 6, 1993
    Date of Patent: January 17, 1995
    Assignee: Ford Motor Company
    Inventors: James M. Raffa, Terry T. Cwik, Michael F. Aronow, Winston A. Little, Allen H. Meitzler, Peter W. Misangyi, Jame A. Nix-Gomez, George S. Saloka, Noel A. Walker
  • Method and apparatus for determining engine oil change intervals according to actual engine use
    Patent number: 5060156
    Abstract: Engine lubricating oil temperature and the amount of engine usage are used to calculate when engine lubricating oil has reached the end of its predicted wear life. Each spark (engine speed) pulse is multiplied by weighting factors that are periodically determined by sampling the engine oil temperature and the length of time the engine has been in continuous use above a predetermined speed. When the value of the accumulated weighted spark pulses has reached a predetermined level, a warning signal is provided to indicate the necessity of changing the engine lubricating oil.
    Type: Grant
    Filed: July 20, 1989
    Date of Patent: October 22, 1991
    Assignee: Ford Motor Company
    Inventors: Jeffery L. Vajgart, Peter W. Misangyi, Parshuram G. Date, Roger S. Heitzeg, Noel A. Walker, David A. McNamara, Joe C. Attard
  • A/D converter
    Patent number: 4978958
    Abstract: Method and apparatus for sampling an analog voltage and providing a digital representation of the sampled voltage by binary switching individual resistive networks in parallel with a reference leg of a comparator circuit and combining binary switching signals with the comparator output signal.
    Type: Grant
    Filed: October 11, 1989
    Date of Patent: December 18, 1990
    Assignee: Ford Motor Company
    Inventor: Noel A. Walker