Patents by Inventor John F. Moellmer

John F. Moellmer 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).

  • Radiation sterilizable antimicrobial ointment and process to manufacture
    Patent number: 5609866
    Abstract: Sterilized povidone-iodine (polyvinylpyrrolidone-iodine) in an ointment form is obtained by preparation of a mixture of purified water, povidone-iodine, a non-ionic gelling agent, and a non-ionic low suds surfactant. The ointment is a liquid in the temperature range of about 2.degree. C. to 9.degree. C. because of the influence of the non-ionic gelling agent. At room temperature, the mixture forms a free standing ointment which can be sterilized by gamma radiation without degradation of its antimicrobial efficacy, viscosity or shelf life. The ointment is easily prepared by using chilled purified water which maintains the mixture as a liquid while all of the ingredients are mixed together. At room temperature the mixture becomes a free standing ointment.
    Type: Grant
    Filed: December 6, 1993
    Date of Patent: March 11, 1997
    Assignee: Becton Dickinson and Company
    Inventors: Mohammed A. Khan, John F. Moellmer
  • Chlorhexidine composition useful in a surgical scrub
    Patent number: 5164107
    Abstract: A cleansing composition particularly useful as a surgical scrub includes chlorhexidine gluconate and a nonylphenoxypoly(ethyleneoxy)ethanol surfactant in an aqueous vehicle, and may contain other surfactants, thickeners, emollients, dyes, perfumes and the like.
    Type: Grant
    Filed: April 25, 1991
    Date of Patent: November 17, 1992
    Assignee: Becton, Dickinson and Company
    Inventors: Mohammad A. Khan, John F. Moellmer
  • Periodate iodophor composition with increased stability
    Patent number: 5116623
    Abstract: A germicidal iodophor composition is disclosed having improved long term stability, by controlling the pH of the composition and supplementing the elemental iodine with a source of periodate. The present invention comprises an iodophor composition comprising periodate and having a pH of about 4.5 or below. Processes for making the iodophors, as well as methods for killing bacteria on a substrate using these germicidal iodophor compositions are also disclosed.
    Type: Grant
    Filed: January 22, 1991
    Date of Patent: May 26, 1992
    Assignee: Becton, Dickinson and Company
    Inventors: Mohammad A. Khan, John F. Moellmer
  • Radiation compatible iodine formulation
    Patent number: 4904480
    Abstract: A germicidal iodine-containing composition includes iodine, an iodophor, cupric ions and nitrite ions in an aqueous base. Iodide ions which form in the composition during radiation sterilization or prolonged shelf life are oxidized back to iodine by the cupric ions in a Ph dependent reaction which consumes hydrogen ions formed concurrently with the iodide ions. Cuprous ions formed during the oxidation are spontaneously cycled back to cupric ions by traces of air present in the composition. The composition may include nitrite ions to augment the conversion of cuprous ions back to the cupric form.
    Type: Grant
    Filed: September 19, 1988
    Date of Patent: February 27, 1990
    Assignee: Becton, Dickinson and Company
    Inventors: Mohammed A. Khan, John F. Moellmer