Patents by Inventor Dmitri Grinberg

Dmitri Grinberg 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 the preparation of n-propyl bromide
    Patent number: 7217849
    Abstract: A method is described for producing n-propyl bromide of a high degree of purity, which contains isopropyl bromide in an amount lower than 0.1% w/w, and usually lower than 0.05%. The method is characterized in that n-propanol is reacted with HBr which is in gas form, preferably dry, and which is in excess over the stoichiometric amount, wherein the excess HBr is at the end of the reaction in an aqueous solution formed from the reaction water. The invention further relates to N-propyl bromide of high purity, containing typically less than 500 ppm of isopropyl bromide.
    Type: Grant
    Filed: November 11, 2002
    Date of Patent: May 15, 2007
    Assignee: Bromine Compounds Ltd.
    Inventors: Aharon Meirom, Arieh Kampf, Dmitri Grinberg, Sarina Grinberg, legal representative, Mark Grinberg, deceased
  • Method for the preparation of n-propyl bromide
    Publication number: 20050065386
    Abstract: A method is described for producing n-propyl bromide of a high degree of purity, which contains isopropyl bromide in an amount lower than 0.1% w/w, and usually lower than 0.05%. The method is characterized in that n-propanol is reacted with HBr which is in gas form, preferably dry, and which is in excess over the stoichiometric amount, wherein the excess HBr is at the end of the reaction in an aqueous solution formed from the reaction water. The invention further relates to N-propyl bromide of high purity, containing typically less than 500 ppm of isopropyl bromide.
    Type: Application
    Filed: November 11, 2002
    Publication date: March 24, 2005
    Applicant: Bromine Compounds Ltd.
    Inventors: Aharon Meirom, Arieh Kampf, Dmitri Grinberg, Mark Grinberg, Sarina Grinberg