Patents by Inventor Martin Tobkes

Martin Tobkes 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).

  • Clindamycin phosphate synthesis
    Patent number: 5182374
    Abstract: An improved process for producing the antibiotic compound clindamycin phosphate through the use of novel intermediate, 7(S)-chloro-7-deoxylincomycin-2-bis(2,2,2-trichloroethyl)phosphochloridate and similar compounds.
    Type: Grant
    Filed: March 21, 1990
    Date of Patent: January 26, 1993
    Assignee: American Cyanamid Company
    Inventors: Martin Tobkes, Simon Diaz, Lalitha Krishnan
  • Antibiotic BM123.nu. pamoate complexes
    Patent number: 4291026
    Abstract: This disclosure describes reversible complexes made from antibiotic trans-BM123.nu. and water soluble pamoate salts and a process for preparing same. These highly stable complexes are useful as animal feed supplements which significantly enhance the growth rate of animals and poultry.
    Type: Grant
    Filed: August 28, 1979
    Date of Patent: September 22, 1981
    Assignee: American Cyanamid Company
    Inventors: Martin Tobkes, Murray Dann, Irving Klothen, Larry D. Spicer, David R. Williams
  • Antibiotic BM123-dioctyl sulfosuccinate complexes
    Patent number: 4196200
    Abstract: This disclosure describes reversible complexes of antibiotic trans-BM123.gamma. with a dioctyl sulfosuccinate salt and a process for preparing same. The complexes are useful as animal feed supplements which significantly enhance the growth rate of animals and poultry.
    Type: Grant
    Filed: February 2, 1978
    Date of Patent: April 1, 1980
    Assignee: American Cyanamid Company
    Inventors: Martin Tobkes, Murray Dann
  • Antibiotic BM123-alkyl sulfate complexes
    Patent number: 4196198
    Abstract: This disclosure describes reversible complexes of antibiotic trans-BM123.gamma. with an alkali metal alkyl sulfate and a process for preparing same. The complexes are useful as animal feed supplements which significantly enhance the growth rate of animals and poultry.
    Type: Grant
    Filed: February 2, 1978
    Date of Patent: April 1, 1980
    Assignee: American Cyanamid Company
    Inventors: Martin Tobkes, Murray Dann
  • Antibiotic BM123 syntan complexes
    Patent number: 4196199
    Abstract: This disclosure describes reversible complexes of antibiotic trans-BM123.gamma. with a synthetic tanning agent and a process for preparing same. The complexes are useful as animal feed supplements which significantly enhance the growth rate of animals and poultry.
    Type: Grant
    Filed: February 2, 1978
    Date of Patent: April 1, 1980
    Assignee: American Cyanamid Company
    Inventors: Martin Tobkes, Murray Dann
  • Isolation and recovery of calcium chloride complex of 7-dimethylamino-6-dimethyl l-6-deoxytetracycline hydrochloride
    Patent number: 4038315
    Abstract: This disclosure describes a process for the recovery of 7-dimethylamino-6-demethyl-6-deoxytetracycline from an aqueous solution thereof by means of a calcium chloride complex of 7-dimethylamino-6-demethyl-6-deoxy-tetracycline hydrochloride.
    Type: Grant
    Filed: May 11, 1972
    Date of Patent: July 26, 1977
    Assignee: American Cyanamid Company
    Inventor: Martin Tobkes