Patents by Inventor Piero Antonini

Piero Antonini 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 selectively increasing the ratio of single major components of antibiotic A/16686 complex
    Patent number: 5925550
    Abstract: The present invention relates to a method for selectively enhancing the production of factors A.sub.2 and/or A.sub.3 of antibiotic A/16686 either to isolate these single components or to enrich the complex in one or both the above components, which comprises adding an appropriate precursor of the desired antibiotic factor to an A/16686 producing culture during fermentation.
    Type: Grant
    Filed: December 18, 1997
    Date of Patent: July 20, 1999
    Assignee: Biosearch Italia S.p.A.
    Inventors: Giancarlo Lancini, Angelo Borghi, Piero Antonini
  • Process for the preparation of de-mannosyl teicoplanin derivatives
    Patent number: 5135857
    Abstract: The object of this invention are de-mannosylated teicoplanin derivatives which can be obtained in good yield by microbiological transformation with cultures of Nocardia orientalis NRRL 2450 or Streptomyces candidus NRRL 3218.
    Type: Grant
    Filed: July 12, 1991
    Date of Patent: August 4, 1992
    Assignee: Gruppo Lepetit S.p.A.
    Inventors: Angelo Borghi, Giancarlo Lancini, Piero Antonini
  • Teicoplanin-like derivatives
    Patent number: 5085990
    Abstract: The present invention relates to new teicoplanin-like antibiotics differing from the parent compound in the length of the acyl group.The compounds of the invention are obtained according to a microbiological process and possess an antimicrobiol activity mainly against gram positive bacteria.
    Type: Grant
    Filed: May 10, 1991
    Date of Patent: February 4, 1992
    Assignee: Gruppo Lepetit S.p.A.
    Inventors: Giancarlo Lancini, Angelo Borghi, Piero Antonini, Raffaele Palumbo
  • De-mannosyl teicoplanin derivatives
    Patent number: 5064811
    Abstract: The oject of this invention are de-mannosylated teicoplanin derivatives which can be obtained in good yield by microbiological transformation with cultures of Nocardia orientalis NRRL 2450 or Streptomyces candiodus NRRL 3218.
    Type: Grant
    Filed: February 13, 1991
    Date of Patent: November 12, 1991
    Assignee: Gruppo LePetit S.p.A.
    Inventors: Angelo Borghi, Giancarlo Lancini, Piero Antonini
  • Rifamycin R and microorganisms useful in the production of rifamycins
    Patent number: 4263404
    Abstract: Novel rifamycin compounds, designated P, Q, R and U, produced by the fermentation of mutant strains of Streptomyces mediterranei.
    Type: Grant
    Filed: November 29, 1976
    Date of Patent: April 21, 1981
    Assignee: Gruppo Lepetit S.p.A.
    Inventors: Richard J. White, Giancarlo Lancini, Piero Antonini
  • Rifamycins P, Q and U
    Patent number: 4042683
    Abstract: This invention is directed to rifamycin compounds which are produced by fermentation of Nocardia mediterranea ATCC 31064, ATCC 31065 or ATCC 31066 in an aqueous nutrient medium under aerobic conditions. These rifamycins are referred to as rifamycin P, rifamycin Q, rifamycin R and rifamycin U.
    Type: Grant
    Filed: August 4, 1975
    Date of Patent: August 16, 1977
    Assignee: Gruppo Lepetit S.p.A.
    Inventors: Richard J. White, Giancarlo Lancini, Piero Antonini