Patents by Inventor Sandor Piukovich

Sandor Piukovich 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 high-purity gamma- and alpha-cyclodextrins
    Patent number: 4835105
    Abstract: The invention relates to a process for the preparation of high-purity gamma- and alpha-cyclodextrin starting from a starch substrate of low reducing capacity, partially hydrolysed with alpha-amylase. According to the invention a starch substrate of low reducing capacity partially hydrolysed with alpha-amylase is converted with cyclodextrin glucosyl transferase, after the addition of an aliphatic ketone of the formula R.sub.1 COR.sub.2, in which R.sub.1 and R.sub.2 stand for a straight or branched chained alkyl group having from 1 to 6 carbon atoms, and/or a phenol derivative of the formula R.sub.3 R.sub.4 PheOH, wherein R.sub.3 and R.sub.4 are hydrogen, alkyl having from 1 to 4 carbon atoms, or R.sub.3 and R.sub.4 together form phenyl group, Phe stand for phenyl group, OH is hydroxyl and/or a benzene derivative of the formula R.sub.5 R.sub.6 Phe, wherein R.sub.5 and R.sub.6 are hydrogen, alkyl having from 1 to 4 carbon atoms, or R.sub.5 and R.sub.
    Type: Grant
    Filed: July 9, 1987
    Date of Patent: May 30, 1989
    Assignee: Chinoin Gyogyszer Es Vegyeszeti Termekek Gyara Rt.
    Inventors: Gabor Seres, Miklos Jarai, Sandor Piukovich, Maria Szigetvari nee Gabanyi, Jozsef Szejtli
  • Self-degrading composition and fodder
    Patent number: 4376129
    Abstract: The present invention relates to a process for the preparation of a "self-degrading" composition suitable for use in feeding and/or feed-conversing purposes and if desired for the conversion thereof into a self-degrading fodder mixture which comprises pre-degrading the starch being present in cereal fodder and/or maize fodder to an extent that the degradation index of the crop should be from 0.12 to 0.27, and thereafter admixing the so-called "available starch" thus obtained in finely ground form in optional order of succession with .alpha.-amylase and optionally with further additives and--if "self-degrading" fodder mixture is to be prepared--with fodder.The composition of the present invention provides carbohydrates utilizable by the digestive organs of animals. The process of the invention provides products equivalent with the very expensive maltodextrins using cheap and readily available starting materials.
    Type: Grant
    Filed: December 19, 1980
    Date of Patent: March 8, 1983
    Assignee: Chinoin Gyogyszer es Vegyeszeti Termekek Gyara Rt.
    Inventors: Sandor Piukovich, Lajos Stankovics, Tibor Kiralyhidi
  • Micromonospora culture
    Patent number: 4371622
    Abstract: Micromonospora danubiensis, a new species, having the capability of producing sisomicin.
    Type: Grant
    Filed: January 30, 1980
    Date of Patent: February 1, 1983
    Assignee: CHINOIN Gyogyszer es Vegyeszeti Termekek Gyara R.T.
    Inventors: Miklos Jarai, Sandor Piukovich, Sandor Istvan, Istvan Gado, Valeria Szell, Istvan Barta
  • Method for the production of sisomicin
    Patent number: 4369251
    Abstract: Sisomicin is produced by culturing Micromonospora danubienis.
    Type: Grant
    Filed: December 8, 1980
    Date of Patent: January 18, 1983
    Assignee: Chinoin Gyogyszer es Vegyeszeti Termekek Gyara R.T.
    Inventors: Miklos Jarai, Sandor Piukovich, Sandor Istvan, Istvan Gado, Valeria Szell, Istvan Barta
  • Method for the preparation of antibiotic sisomicin
    Patent number: 4365020
    Abstract: A process of producing sisomycin by cultivating a new species of Micromonospora.
    Type: Grant
    Filed: December 8, 1980
    Date of Patent: December 21, 1982
    Assignee: CHINOIN Gyogyszer es Vegyeszeti Termekek Gyara R.T.
    Inventors: Istvan Gado, Antonia Jekkel nee Bokany, Gyorgy Szvoboda, Miklos Jarai, Sandor Piukovich, Sandor Istvan
  • Micromonospora culture
    Patent number: 4363876
    Abstract: A culture of Micromonospora rosea capable of producing the antibiotic sisomicin.
    Type: Grant
    Filed: January 30, 1980
    Date of Patent: December 14, 1982
    Assignee: Chinoin Gyogyszer es Vegyeszeti Termekek Gyara R.T.
    Inventors: Istvan Gado, Antonia Jekkel nee Bokany, Gy uml/o/ rgy Szvoboda, Miklos Jarai, Sandor Piukovich, Sandor Istvan