Patents by Inventor Alexandr Andrejevich Makarov

Alexandr Andrejevich Makarov 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).

  • Carotene stabilizers and stabilization of carotene
    Patent number: 3948924
    Abstract: New stabilizers for carotene, which retard its oxidation and protect it against destruction, and which are 3,5-di-carbonyl derivatives of 2,6-dimethyl-1,4-dihydropyridine, conforming to the general formula ##SPC1##Where R is a lower alkyl, such as methyl, or an alkoxy, such as an ethoxy group.The introducing of said stabilizers into fodder products for animals such as, for instance, into grass four, makes it possible to preserve valuable nutritive properties of such products during a long period of time, of at least 6 months.
    Type: Grant
    Filed: February 26, 1974
    Date of Patent: April 6, 1976
    Inventors: Solomon Aronovich Giller, Gunar Yanovich Dubur, Ian Rikhardovich Uldrikis, Gunar Jamovich Tirzit, Andrei Robertovich Valdman, Ivan Markovich Zakharchenko, Yazep Yanovich Spruz, Vitaly Evgenievich Ronis, Alexandr Andrejevich Makarov