Patents by Inventor Mark W. Grenfell

Mark W. Grenfell 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).

  • Patent number: 6759374
    Abstract: The present invention provides a composition for cutting or abrasive working operations that comprises at least one lubricious additive and at least one hydrofluorocarbons. The present invention also provides a method for cutting or abrasive working.
    Type: Grant
    Filed: September 19, 2001
    Date of Patent: July 6, 2004
    Assignee: 3M Innovative Properties Company
    Inventors: Dean S. Milbrath, Mark W. Grenfell
  • Patent number: 6734154
    Abstract: A process for removing contaminants from the surface of a substrate comprises contacting the substrate with a cleaning composition comprising at least one mono-, di-, or trialkoxy-substituted perfluoroalkane, perfluorocycloalkane, perfluorocycloalkyl-containing perfluoroalkane, or perfluorocycloalkylene-containing perfluoroalkane compound, the compound optionally containing additional catenary heteroatoms. The compounds exhibit good solvency properties while being environmentally acceptable.
    Type: Grant
    Filed: December 18, 2001
    Date of Patent: May 11, 2004
    Assignee: 3M Innovative Properties Company
    Inventors: Richard M. Flynn, Mark W. Grenfell, George G. I. Moore, John G. Owens, Dean S. Milbrath
  • Publication number: 20030134757
    Abstract: The present invention provides a composition for cutting or abrasive working operations that comprises at least one lubricious additive and at least one hydrofluorocarbons. The present invention also provides a method for cutting or abrasive working.
    Type: Application
    Filed: September 19, 2001
    Publication date: July 17, 2003
    Inventors: Dean S. Milbrath, Mark W. Grenfell
  • Patent number: 6506459
    Abstract: A process for removing contaminants from the surface of a substrate comprises contacting the substrate with a cleaning composition comprising at least one mono-, di-, or trialkoxy-substituted perfluoroalkane, perfluorocycloalkane, perfluorocycloalkyl-containing perfluoroalkane, or perfluorocycloalkylene-containing perfluoroalkane compound, the compound optionally containing additional catenary heteroatoms. The compounds exhibit good solvency properties while being environmentally acceptable.
    Type: Grant
    Filed: December 20, 2001
    Date of Patent: January 14, 2003
    Assignee: 3M Innovative Properties Company
    Inventors: Richard M. Flynn, Mark W. Grenfell, George G. I. Moore, John G. Owens
  • Publication number: 20030007543
    Abstract: The present invention provides a method for testing an electronic component comprising exposing the electronic component to a test fluid comprising a fluoroketone that is essentially non-flammable. Preferably the test fluid is comprised of 90% by weight to 100% by weight of the fluoroketone.
    Type: Application
    Filed: June 14, 2001
    Publication date: January 9, 2003
    Applicant: 3M Innovative Properties Company
    Inventors: Mark W. Grenfell, Richard M. Minday
  • Publication number: 20020124326
    Abstract: A process for removing contaminants from the surface of a substrate comprises contacting the substrate with a cleaning composition comprising at least one mono-, di-, or trialkoxy-substituted perfluoroalkane, perfluorocycloalkane, perfluorocycloalkyl-containing perfluoroalkane, or perfluorocycloalkylene-containing perfluoroalkane compound, the compound optionally containing additional catenary heteroatoms. The compounds exhibit good solvency properties while being environmentally acceptable.
    Type: Application
    Filed: December 18, 2001
    Publication date: September 12, 2002
    Applicant: 3M Innovative Properties Company
    Inventors: Richard M. Flynn, Mark W. Grenfell, George G. I. Moore, John G. Owens, Dean S. Milbrath
  • Publication number: 20020119901
    Abstract: A process for removing contaminants from the surface of a substrate comprises contacting the substrate with a cleaning composition comprising at least one mono-, di-, or trialkoxy-substituted perfluoroalkane, perfluorocycloalkane, perfluorocycloalkyl-containing perfluoroalkane, or perfluorocycloalkylene-containing perfluoroalkane compound, the compound optionally containing additional catenary heteroatoms. The compounds exhibit good solvency properties while being environmentally acceptable.
    Type: Application
    Filed: December 20, 2001
    Publication date: August 29, 2002
    Applicant: 3M Innovative Properties Company
    Inventors: Richard M. Flynn, Mark W. Grenfell, George G.I. Moore, John G. Owens
  • Patent number: 6376452
    Abstract: A process for removing contaminants from the surface of a substrate comprises contacting the substrate with a cleaning composition comprising at least one mono-, di-, or trialkoxy-substituted perfluoroalkane, perfluorocycloalkane, perfluorocycloalkyl-containing perfluoroalkane, or perfluorocycloalkylene-containing perfluoroalkane compound, the compound optionally containing additional catenary heteroatoms. The compounds exhibit good solvency properties while being environmentally acceptable.
    Type: Grant
    Filed: March 31, 1999
    Date of Patent: April 23, 2002
    Assignee: 3M Innovative Properties Company
    Inventors: Richard M. Flynn, Mark W. Grenfell, George G. I. Moore, John G. Owens, Dean S. Milbrath
  • Patent number: 6294508
    Abstract: In one aspect, this invention provides a fluid comprising one or more hydrofluoroether(s) and one or more lubricious additive(s) for the cutting and abrasive treatment of metal, cermet, or composite materials. In another aspect, the present invention provides a method of cutting and abrasively treating metal, cermet, or composite materials comprising applying to the metal, cermet, or composite workpiece and tool a fluid comprising a hydrofluoroether and a lubricious additive.
    Type: Grant
    Filed: May 2, 2000
    Date of Patent: September 25, 2001
    Assignee: 3M Innovative Properties Company
    Inventors: Dean S. Milbrath, Mark W. Grenfell
  • Patent number: 6043201
    Abstract: In one aspect, this invention provides a composition for the cutting and abrasive treatment of metals and ceramic materials comprising a hydrofluoroether. In another aspect, the present invention provides a method of cutting and abrasively treating metals and ceramic materials comprising applying to the metal or ceramic workpiece and tool a composition comprising a hydrofluoroether.
    Type: Grant
    Filed: September 17, 1996
    Date of Patent: March 28, 2000
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Dean S. Milbrath, Mark W. Grenfell, Daniel D. Krueger, Richard M. Flynn, Frederick E. Behr
  • Patent number: 5962390
    Abstract: A process for removing contaminants from the surface of a substrate comprises contacting the substrate with a cleaning composition comprising at least one mono-, di-, or trialkoxy-substituted perfluoroalkane, perfluorocycloalkane, perfluorocycloalkyl-containing perfluoroalkane, or perfluorocycloalkylene-containing perfluoroalkane compound, the compound optionally containing additional catenary heteroatoms. The compounds exhibit good solvency properties while being environmentally acceptable.
    Type: Grant
    Filed: May 17, 1996
    Date of Patent: October 5, 1999
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Richard M. Flynn, Mark W. Grenfell, George G. I. Moore, John G. Owens, Dean S. Milbrath
  • Patent number: 5844034
    Abstract: This invention provides a fluoropolymer dispersion useful for coating applications. The dispersion is a homogeneous and non-ozone depleting dispersion comprising a lubricious fluoropolymer, an inert perfluorinated liquid, a polar solvent, and an effective amount of a surface active agent selected from the group consisting ofa. perfluoroaliphatic amidoalkanols;b. polymerized products formed from the reaction of a mixture comprising a hydrophilic monomer and a monomer of the general formula: ##STR1## wherein p and q are integers between 1 and 4 inclusive, x and y are integers between 0 and 4 inclusive, m is 1 or 2, n is an integer between 3 and 10 inclusive, X' is either a methyl group or a single hydrogen atom, g is 0 or 1, and Q is a sulfonamido constituent group according to the formula: ##STR2## wherein R.sup.
    Type: Grant
    Filed: May 1, 1997
    Date of Patent: December 1, 1998
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Mark W. Grenfell, Richard M. Flynn, Patricia M. Savu
  • Patent number: 5839311
    Abstract: In one aspect, this invention provides a lubricating and colling composition for the forming of metals comprising a hydrofluoroether. In another aspect, the present invention provides a method of forming metals comprising applying to the metal and the workpiece a composition comprising a hydrofluoroether.
    Type: Grant
    Filed: September 17, 1996
    Date of Patent: November 24, 1998
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Mark W. Grenfell, Dean S. Milbrath, Daniel D. Krueger, Richard M. Flynn, Frederick E. Behr
  • Patent number: 5660888
    Abstract: This invention provides a fluoropolymer dispersion useful for coating applications, The dispersion is a homogeneous and non-ozone depleting dispersion comprising a lubricious fluoropolymer, an inert perfluorinated liquid, a polar solvent, and an effective amount of a surface active agent selected from the group consisting of:a. perfluoroaliphatic amidoalkanols;b. polymerized products formed from the reaction of a mixture comprising a hydrophilic monomer and a monomer of the general formula: ##STR1## wherein p and q are integers between 1 and 4 inclusive, x and y are integers between 0 and 4 inclusive, m is 1 or 2, n is an integer between 3 and 10 inclusive, X' is either a methyl group or a single hydrogen atom, g is 0 or 1, and Q is a sulfonamido constituent group according to the formula: ##STR2## wherein R.sup.
    Type: Grant
    Filed: May 7, 1996
    Date of Patent: August 26, 1997
    Assignee: Minnesota Mining & Manufacturing Company
    Inventors: Mark W. Grenfell, Richard M. Flynn, Patricia M. Savu
  • Patent number: 5560861
    Abstract: Azeotropic compositions include a perfluorinated alkane or alkene and an organic solvent.
    Type: Grant
    Filed: December 2, 1994
    Date of Patent: October 1, 1996
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Richard M. Flynn, Mark W. Grenfell, Frank W. Klink, Daniel R. Vitcak
  • Patent number: 5532310
    Abstract: This invention provides a fluoropolymer dispersion useful for coating applications. The dispersion is a homogeneous and non-ozone depleting dispersion comprising a lubricious fluoropolymer, an inert perfluorinated liquid, a polar solvent, and an effective amount of a surface active agent selected from the group consisting of:a. perfluoroaliphatic amidoalkanols;b. polymerized products formed from the reaction of a mixture comprising a hydrophilic monomer and a monomer of the general formula: ##STR1## wherein p and q are integers between 1 and 4 inclusive, x and y are integers between 0 and 4 inclusive, m is 1 or 2, n is an integer between 3 and 10 inclusive, X' is either a methyl group or a single hydrogen atom, g is 0 or 1, and Q is a sulfonamido constituent group according to the formula: ##STR2## wherein R.sup.
    Type: Grant
    Filed: April 28, 1995
    Date of Patent: July 2, 1996
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Mark W. Grenfell, Richard M. Flynn, Patricia M. Savu
  • Patent number: 5484489
    Abstract: An azeotropic composition includes a perfluorinated cycloaminoether and an organic solvent.
    Type: Grant
    Filed: January 6, 1995
    Date of Patent: January 16, 1996
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Richard M. Flynn, Mark W. Grenfell, Frank W. Klink, Daniel R. Vitcak
  • Patent number: 5401429
    Abstract: An azeotropic composition includes a perfluorinated cycloaminoether and an organic solvent.
    Type: Grant
    Filed: April 1, 1993
    Date of Patent: March 28, 1995
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Richard M. Flynn, Mark W. Grenfell, Frank W. Klink, Daniel R. Vitcak
  • Patent number: 5369983
    Abstract: A detection medium and method for use in detecting gross and fine leaks in a hermetically sealed package. In a preferred embodiment, the detection medium includes a detectable perfluorinated gas dissolved in a detectable perfluorinated liquid. The package is placed in a bombing chamber and then exposed to the detection medium under pressure introduce the detectable liquid and dissolved, detectable gas into the package through any gross leak openings and to introduce the detectable gas and some detectable liquid vapor into the package through any fine leak openings. The package is then removed from the detection medium and air dried to evaporate any detection medium attached to an exterior surface of the package. The package is placed in a test chamber which collects detectable gas and vapor of the detectable liquid escaping through the gross and fine leak openings. A measurement instrument detects whether a component of the detection medium has escaped from the sealed package as an indication of a leak.
    Type: Grant
    Filed: April 17, 1992
    Date of Patent: December 6, 1994
    Assignee: Minnesota Mining and Manufacturing Company
    Inventor: Mark W. Grenfell
  • Patent number: 5030805
    Abstract: A condensation heating apparatus particularly useful for curing abrasion resistant coatings on eyeglass lenses has an open topped chamber with a baffle assembly for reducing the loss of vapor through the open top. The baffle assembly includes a fixed vertical partition and a removable, L-shaped baffle that has a horizontal portion to cover part of the chamber and a vertical portion which also serves as a partition. The baffle assembly extends only partially into the chamber and terminates above the top of the vapor zone so that the assembly does not become hot to the touch.
    Type: Grant
    Filed: February 20, 1990
    Date of Patent: July 9, 1991
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Timothy A. Koenig, John A. Pignato, Jr., Mark W. Grenfell