Patents by Inventor András Szego

András Szego 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).

  • Process for the preparation of stable aqueous suspensions of methyl N-(2-benzimidzolyl)-carbamate
    Patent number: 4486595
    Abstract: The invention relates to a new process for the preparation of stable aqueous suspensions of methyl N-(2-benzimidazolyl)carbamate. According to the invention an aqueous solution of an addition salt of methyl N-(2-benzimidazolyl)carbamate and an inorganic acid, optionally containing an excess amount of acid is reacted with an aqueous potassium, sodium or ammonium hydroxide solution or ammonia gas, in the presence of a wetting, dispersing and antifoaming agent and optionally of a protecting colloid at a temperature of 50.degree. C. to 100.degree. C., and if desired, the suspension obtained is concentrated or diluted. The suspension prepared by this process can either be used directly or can be supplemented with further additive(s) conventionally used in the preparation of plant protecting agents.
    Type: Grant
    Filed: October 24, 1983
    Date of Patent: December 4, 1984
    Assignee: Chinoin Gyogyszer Es Vegyeszeti Termekek Gyara R.T.
    Inventors: Andras Szego, Ferenc Kovats, Viktoria Peterdi, Istvan Bone, Laszlo Gombos, Ferenc z, Imre Simon