Patents Represented by Attorney Allen J. Spiegel

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  • Sulfonamide compositions
    Patent number: 4374826
    Abstract: Aqueous parenteral solutions of from about 10 to 20% w/v of sulfamethoxazole or sulfadoxine and about 3 to 5% w/v of trimethoprim in from about 60 to 80% w/v of 2-pyrrolidone are disclosed.
    Type: Grant
    Filed: July 10, 1981
    Date of Patent: February 22, 1983
    Assignee: Pfizer Inc.
    Inventor: William W. Armstrong
  • Sulfonamide compositions
    Patent number: 4303643
    Abstract: Aqueous parenteral solutions of from about 10 to 20% w/v of sulfamethoxazole or sulfadoxine and about 3 to 5% w/v of trimethoprim in from 60 to 80% w/v of 2-pyrrolidone are disclosed.
    Type: Grant
    Filed: July 21, 1980
    Date of Patent: December 1, 1981
    Assignee: Pfizer Inc.
    Inventor: William W. Armstrong
  • Oxytetracycline compositions
    Patent number: 4259331
    Abstract: Pharmaceutical compositions containing magnesium-calcium-oxytetracycline mixed chelates in aqueous 2-pyrrolidone solution are disclosed.
    Type: Grant
    Filed: April 16, 1979
    Date of Patent: March 31, 1981
    Assignee: Pfizer Inc.
    Inventor: William W. Armstrong
  • Tetracycline antibiotic compositions
    Patent number: 4126680
    Abstract: Aqueous solutions of oxytetracycline, doxycycline or chlortetracycline in caprolactam or 2-piperidone are disclosed.
    Type: Grant
    Filed: April 27, 1977
    Date of Patent: November 21, 1978
    Assignee: Pfizer Inc.
    Inventor: William W. Armstrong
  • Doxycycline compositions
    Patent number: 4086332
    Abstract: Aqueous solutions of doxycycline or salts thereof, a pharmaceutically acceptable soluble magnesium compound and 2-pyrrolidone as a co-solvent, said solution having a pH of 3 to 7.5 and being useful as an injectable composition combining low viscosity, high potency, good clarity and good stability.
    Type: Grant
    Filed: December 7, 1976
    Date of Patent: April 25, 1978
    Assignee: Pfizer Inc.
    Inventor: William W. Armstrong
  • Chlortetracycline compositions
    Patent number: 4081527
    Abstract: Aqueous solutions of chlortetracycline or salts thereof, a pharmaceutically acceptable calcium compound and 2-pyrrolidone as a co-solvent, said solution having a pH of 8 to 10 and being useful as an injectable composition combining low viscosity, high potency, good clarity and good stability.
    Type: Grant
    Filed: December 7, 1976
    Date of Patent: March 28, 1978
    Assignee: Pfizer Inc.
    Inventors: William W. Armstrong, Saurabhkumar J. Desai
  • Tetracycline compositions
    Patent number: 4081528
    Abstract: Aqueous solutions of tetracycline or salts thereof, a pharmaceutically acceptable soluble magnesium compound and 2-pyrrolidone as a co-solvent, said solution having a pH of 7.5 to 9.5 and being useful as an injectable composition combining low viscosity, high potency, good clarity and good stability.
    Type: Grant
    Filed: December 7, 1976
    Date of Patent: March 28, 1978
    Assignee: Pfizer Inc.
    Inventor: William W. Armstrong
  • Polydextrose-based farinaceous compositions
    Patent number: 4042714
    Abstract: Modified polydextrose-based farinaceous compositions are disclosed which are useful in the preparation of pastas and other flour-containing foods.
    Type: Grant
    Filed: July 23, 1976
    Date of Patent: August 16, 1977
    Assignee: Pfizer Inc.
    Inventor: Anibal Torres
  • Oxytetracycline compositions
    Patent number: 4018889
    Abstract: Oxytetracycline aqueous solutions containing 2-pyrrolidone as a co-solvent suitable for pharmaceutical use and especially useful for either oral, topical or parenteral administration are disclosed.
    Type: Grant
    Filed: January 2, 1976
    Date of Patent: April 19, 1977
    Assignee: Pfizer Inc.
    Inventor: William W. Armstrong
  • Gold-colored alloy solders
    Patent number: 4014690
    Abstract: A gold-colored alloy solder for use with dental gold alloys and gold-colored jewelry alloys includes the following ranges of constituents in percentages by weight:______________________________________ Constituent Proportional Range ______________________________________ Gold 60 - 70% Platinum 0 - 10% Palladium 0 - 10% Copper 10 - 25% Gallium 5 - 10% Iridium 0 - 0.01% ______________________________________With the proviso that the total of said platinum and palladium is from about 5-10%.
    Type: Grant
    Filed: May 14, 1976
    Date of Patent: March 29, 1977
    Assignee: Howmedica, Inc.
    Inventors: Ronald P. Dudek, Peter Kosmos, John A. Tesk
  • Low intrinsic value alloys
    Patent number: 4012228
    Abstract: A low intrinsic value alloy for dental and jewelry use includes the following ranges of constituents in percentages by weight:______________________________________ Constituents Proportional Range ______________________________________ Gold 0-45% Platinum 0-30% Palladium 0-20% Copper 30-55% Gallium 5-10% Zinc 0-1% Iridium 0-0.01% ______________________________________WITH THE PROVISO THAT THE TOTAL OF SAID GOLD, PLATINUM AND PALLADIUM IS AT LEAST ABOUT 35%.
    Type: Grant
    Filed: May 14, 1976
    Date of Patent: March 15, 1977
    Assignee: Howmedica, Inc.
    Inventors: Ronald P. Dudek, Peter Kosmos, John A. Tesk
  • Treatment of citrus tree diseases
    Patent number: 3973032
    Abstract: The use of ascorbic acid, erythorbic acid and alkali metal and ammonium salts thereof for treatment of a destructive, widely distributed and rapidly spreading disease of citrus trees known as Young Tree Decline, is disclosed.
    Type: Grant
    Filed: September 19, 1975
    Date of Patent: August 3, 1976
    Assignee: Board of Regents, State of Florida for and on behalf of the University of Florida
    Inventor: Chester D. Leonard
  • Protective coating for graphite electrodes
    Patent number: 3964924
    Abstract: A coating composition for the protection of graphite electrodes comprising a water dispersion of the following ingredients based on total solids: 35 to 65 percent oxide-coated particulate silicon, 15 to 40 percent colloidal silica, 2 to 10 percent powdered carbon and 5 to 20 percent ground glass.
    Type: Grant
    Filed: July 11, 1975
    Date of Patent: June 22, 1976
    Assignee: Pfizer Inc.
    Inventor: Ronald Kurzeja