Patents by Inventor Clark Landis

Clark Landis 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).

  • METHOD FOR MAKING ALDEHYDES, ALCOHOLS, AMIDES, AND CARBOXYLIC ACIDS FROM PLASTIC PYROLYSIS OIL
    Publication number: 20240158324
    Abstract: A method to make primary alcohols, carboxylic acids, amines, and other value-added chemicals from plastic waste. The method includes the steps of pyrolyzing plastic waste to yield pyrolysis oil; hydroformylating the pyrolysis oil in the absence of any added co-reactants to yield a mixture comprising aldehydes; and hydrogenating, oxidizing, aminating, or aldolizing the mixture to yield a product comprising primary alcohols, carboxylic acids, amines, or larger (>C10) chemicals with carbonyl function groups.
    Type: Application
    Filed: June 14, 2023
    Publication date: May 16, 2024
    Applicant: Wisconsin Alumni Research Foundation
    Inventors: George Huber, Houqian Li, Jiayang Wu, Clark Landis
  • Diazaphospholane ligands for asymmetric catalysis
    Patent number: 7189883
    Abstract: This invention relates to asymmetric hydroformylation processes in which a prochiral or chiral olefin is reacted with carbon monoxide and hydrogen in the presence of an optically active metal-ligand complex catalyst to produce an optically active aldehyde or a product derived from an optically active aldehyde.
    Type: Grant
    Filed: August 25, 2005
    Date of Patent: March 13, 2007
    Inventors: Clark Landis, Thomas P. Clark, Jerzy Klosin
  • Novel diazaphospholane ligands for asymmetric catalysis
    Publication number: 20060069281
    Abstract: This invention relates to asymmetric hydroformylation processes in which a prochiral or chiral olefin is reacted with carbon monoxide and hydrogen in the presence of an optically active metal-ligand complex catalyst to produce an optically active aldehyde or a product derived from an optically active aldehyde.
    Type: Application
    Filed: August 25, 2005
    Publication date: March 30, 2006
    Inventors: Clark Landis, Thomas Clark, Jerzy Klosin