Patents by Inventor Peter John Vernon Cleare

Peter John Vernon Cleare 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).

  • Preparation cyano substituted cyclopropane
    Patent number: 4118412
    Abstract: A process for the preparation of cyclopropane compounds which comprises reacting a compound of formula:Y--CH.sub.2 --CNwith a diene of formula:CX.sub.2 =CH--CH=C(CH.sub.3).sub.2in the presence of at least one reducible copper salt, X being chlorine or bromine and Y being cyano, alkoxycarbonyl containing up to four carbon atoms in the alkoxy moiety, benzyloxycarbonyl, phenoxybenzyloxycarbonyl or 2,2-dichlorovinyloxybenzyloxycarbonyl.
    Type: Grant
    Filed: July 7, 1977
    Date of Patent: October 3, 1978
    Assignee: Imperial Chemical Industries Limited
    Inventors: Peter John Vernon Cleare, Albert Edward Kaye, David John Milner
  • Preparation of halogenated aldehydes
    Patent number: 4085148
    Abstract: Aldehydes of the general formula ##STR1## wherein Z is chlorine or bromine which are intermediates in the productions of insecticides.
    Type: Grant
    Filed: November 1, 1976
    Date of Patent: April 18, 1978
    Assignee: Imperial Chemical Industries Limited
    Inventor: Peter John Vernon Cleare
  • Process of preparing alkenes
    Patent number: 4018838
    Abstract: The invention relates to the reductive dehydrohalogenation of .alpha. -haloalcohols to alkenes with powdered zinc in glacial acetic acid.
    Type: Grant
    Filed: April 9, 1976
    Date of Patent: April 19, 1977
    Assignee: Imperial Chemical Industries Limited
    Inventor: Peter John Vernon Cleare