Patents by Inventor Kalman Burger

Kalman Burger 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).

  • Compositions containing hyaluronic acid associates and a process for preparing same
    Patent number: 6458774
    Abstract: Complexes of deprotonated hyaluronic acid with 3d metal ions of the 4th period of the Periodic Table and compositions containing these complexes as active ingredients or carriers. A process for the preparation of the complexes and compositions (pharmaceutical and cosmetic compositions) containing these complexes as active ingredients are disclosed in which zinc or cobalt (II) hyaluronate is preferably used as active ingredient.
    Type: Grant
    Filed: November 25, 1994
    Date of Patent: October 1, 2002
    Assignee: Richter Gedeon Vegyeszeti Gyar Rt.
    Inventors: Kalman Burger, Ivan Rethey, Bela Stefko, Istvan Gebhardt, Arpadne Kiraly, Geza Takacsi Nagy, Janos Illes, Erzsebet Neszmelyi, Istvan Racz, Victoria Varkonyi
  • Pharmaceutical compositions with antimicrobial activity
    Patent number: 6348190
    Abstract: The invention relates to pharmaceutical compositions of antimicrobial effect as well as a process for the preparation thereof. The pharmaceutical compositions of the invention comprise zinc or cobalt hyaluronate associate (complex) as active ingredient in admixture with a carrier and/or other additives commonly used in the pharmaceutical industry.
    Type: Grant
    Filed: March 4, 1999
    Date of Patent: February 19, 2002
    Assignee: Richter Gedeon Vegyeszeti Gyar Rt.
    Inventors: Janos Illes, Erzsebet Nesmelyi, Bela Stefko, Kalman Burger
  • Compositions containing cobalt hyaluronic acid complex
    Patent number: 5472950
    Abstract: Complexes of deprotonated hyaluronic acid with 3d metal ions of the 4th period of the Periodic Table and compositions containing these complexes as active ingredients or carriers. A process for the preparation of the complexes and compositions (pharmaceutical and cosmetic compositions) containing these complexes as active ingredients are disclosed in which zinc or cobalt (II) hyaluronate is preferably used as active ingredient.
    Type: Grant
    Filed: September 22, 1992
    Date of Patent: December 5, 1995
    Assignee: Richter Gedeon Vegyeszeti Gyar Rt.
    Inventors: Kalman Burger, Ivan Rethey, deceased, Bela Stefko, Istvan Gebhardt, Arpadne Kiraly nee Gyongyver Soos, Geza T. Nagy, Janos Illes, Erzsebet Nesmelyi, Istvan Racz, Viktoria Varkonyi
  • Metal complexes of bis-indole compounds and aqueous pharmaceutical compositions containing them
    Patent number: 4684638
    Abstract: The invention relates to new aqueous pharmaceutical compositions containing as active ingredient a pharmaceutically acceptable complex of a bis-indole compound with a bi- or multivalent metal ion in a therapeutically effective amount. The invention further relates to complexes formed between a bis-indole compound and a bi- or multivalent metal ion.According to another aspect of the invention there is provided a process for the preparation of a pharmaceutically acceptable metal complex of a bis-indole compound and optionally stable aqueous pharmaceutical compositions containing said metal complex, in which a solution of a bis-indole compound or a pharmaceutically acceptable salt thereof in an aqueous medium is reacted with a non-toxic water soluble salt of a bi- or multivalent metal capable of complexation, at a pH of 3.0 to 6.0, optionally in the presence of or followed by the addition of a conventional pharmaceutical carrier and/or further additive, or, if desired, the obtained complex is isolated.
    Type: Grant
    Filed: October 1, 1985
    Date of Patent: August 4, 1987
    Assignee: Richter Gedeon Vegyeszeti Gyar Rt.
    Inventors: Geza T. Nagy, Gabor Szepesi, Maria Gazdag, Zsofia Papp nee Sziklay, Kalman Burger