Patents by Inventor Donald P. Hosman

Donald P. Hosman 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).

  • Cleaning composition comprising solvating agent and rinsing agent
    Patent number: 6187729
    Abstract: A liquid cleaning composition comprising a solvating agent and a rinsing agent, the ratio of the vapor pressure of said rinsing agent to the vapor pressure of said solvating agent being at least about 20 and the use thereof to clean substrates that have soil adhered thereto.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: February 13, 2001
    Assignee: Petroferm Inc.
    Inventors: Michael E. Hayes, Donald P. Hosman, Kevin R. Hrebenar, Robert D. Sell
  • Cleaning with solvating and rinsing agents
    Patent number: 5716457
    Abstract: A process for removing soil from a substrate which includes the use of a liquid cleaning composition comprising a solvating agent (for example, a monobasic ester) and a rinsing agent (for example, a perfluorocarbon), the solvating agent having:(i) a room temperature vapor pressure of no greater than about 40 mm Hg; and(ii) a solvating strength of no less than about 10; and the rinsing agent having:(iii) a room temperature vapor pressure of about 8 mm Hg to about 760 mm Hg; and(iv) an ozone depleting factor of no greater than about 0.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: February 10, 1998
    Assignee: Petroferm Inc.
    Inventors: Michael E. Hayes, Donald P. Hosman, Kevin R. Hrebenar, Robert D. Sell
  • Cleaning process including use of solvating and rinsing agents
    Patent number: 5679175
    Abstract: A process for removing soil from a substrate which includes the use of liquid cleaning composition including a solvating agent (for example, a monobasic ester) and a rinsing agent (for example, a perfluorocarbon), the solvating agent having:(i) a room temperature vapor pressure of no greater than about 40 mm Hg; and(ii) a solvating strength of no less than about 10;and the rinsing agent having:(iii) a room temperature vapor pressure of about 8 mm Hg to about 760 mm Hg; and(iv) an ozone depleting factor of no greater than about 0.
    Type: Grant
    Filed: December 14, 1993
    Date of Patent: October 21, 1997
    Assignee: Petroferm Inc.
    Inventors: Michael E. Hayes, Donald P. Hosman, Kevin R. Hrebenar, Robert D. Sell
  • Composition and method for friction loss reduction
    Patent number: 5028574
    Abstract: A catalyst and method is provided for the production of ultra-high molecular weight polymers characterized as having an inherent viscosity of above 12.0 by contacting ethylenically unsaturated monomers with a dual electron donor catalyst under polymerization conditions.
    Type: Grant
    Filed: March 14, 1990
    Date of Patent: July 2, 1991
    Assignee: Conoco Inc.
    Inventors: Donald E. Gessell, Donald P. Hosman
  • Composition and process for friction loss reduction
    Patent number: 4945142
    Abstract: A catalyst and method is provided for the production of ultra-high molecular weight polymers characterized as having an inherent viscosity of above 12.0 by contacting ethylenically unsaturated monomers with a dual electron donor catalyst under polymerization conditions.
    Type: Grant
    Filed: November 14, 1988
    Date of Patent: July 31, 1990
    Assignee: Conoco Inc.
    Inventors: Donald E. Gessell, Donald P. Hosman