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).
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Patent number: 6759374Abstract: 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: GrantFiled: September 19, 2001Date of Patent: July 6, 2004Assignee: 3M Innovative Properties CompanyInventors: Dean S. Milbrath, Mark W. Grenfell
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Patent number: 6734154Abstract: 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: GrantFiled: December 18, 2001Date of Patent: May 11, 2004Assignee: 3M Innovative Properties CompanyInventors: Richard M. Flynn, Mark W. Grenfell, George G. I. Moore, John G. Owens, Dean S. Milbrath
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Publication number: 20030134757Abstract: 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: ApplicationFiled: September 19, 2001Publication date: July 17, 2003Inventors: Dean S. Milbrath, Mark W. Grenfell
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Patent number: 6506459Abstract: 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: GrantFiled: December 20, 2001Date of Patent: January 14, 2003Assignee: 3M Innovative Properties CompanyInventors: Richard M. Flynn, Mark W. Grenfell, George G. I. Moore, John G. Owens
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Publication number: 20030007543Abstract: 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: ApplicationFiled: June 14, 2001Publication date: January 9, 2003Applicant: 3M Innovative Properties CompanyInventors: Mark W. Grenfell, Richard M. Minday
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Publication number: 20020124326Abstract: 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: ApplicationFiled: December 18, 2001Publication date: September 12, 2002Applicant: 3M Innovative Properties CompanyInventors: Richard M. Flynn, Mark W. Grenfell, George G. I. Moore, John G. Owens, Dean S. Milbrath
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Publication number: 20020119901Abstract: 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: ApplicationFiled: December 20, 2001Publication date: August 29, 2002Applicant: 3M Innovative Properties CompanyInventors: Richard M. Flynn, Mark W. Grenfell, George G.I. Moore, John G. Owens
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Patent number: 6376452Abstract: 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: GrantFiled: March 31, 1999Date of Patent: April 23, 2002Assignee: 3M Innovative Properties CompanyInventors: Richard M. Flynn, Mark W. Grenfell, George G. I. Moore, John G. Owens, Dean S. Milbrath
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Patent number: 6294508Abstract: 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: GrantFiled: May 2, 2000Date of Patent: September 25, 2001Assignee: 3M Innovative Properties CompanyInventors: Dean S. Milbrath, Mark W. Grenfell
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Patent number: 6043201Abstract: 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: GrantFiled: September 17, 1996Date of Patent: March 28, 2000Assignee: Minnesota Mining and Manufacturing CompanyInventors: Dean S. Milbrath, Mark W. Grenfell, Daniel D. Krueger, Richard M. Flynn, Frederick E. Behr
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Patent number: 5962390Abstract: 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: GrantFiled: May 17, 1996Date of Patent: October 5, 1999Assignee: Minnesota Mining and Manufacturing CompanyInventors: Richard M. Flynn, Mark W. Grenfell, George G. I. Moore, John G. Owens, Dean S. Milbrath
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Patent number: 5844034Abstract: 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: GrantFiled: May 1, 1997Date of Patent: December 1, 1998Assignee: Minnesota Mining and Manufacturing CompanyInventors: Mark W. Grenfell, Richard M. Flynn, Patricia M. Savu
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Patent number: 5839311Abstract: 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: GrantFiled: September 17, 1996Date of Patent: November 24, 1998Assignee: Minnesota Mining and Manufacturing CompanyInventors: Mark W. Grenfell, Dean S. Milbrath, Daniel D. Krueger, Richard M. Flynn, Frederick E. Behr
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Patent number: 5660888Abstract: 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: GrantFiled: May 7, 1996Date of Patent: August 26, 1997Assignee: Minnesota Mining & Manufacturing CompanyInventors: Mark W. Grenfell, Richard M. Flynn, Patricia M. Savu
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Patent number: 5560861Abstract: Azeotropic compositions include a perfluorinated alkane or alkene and an organic solvent.Type: GrantFiled: December 2, 1994Date of Patent: October 1, 1996Assignee: Minnesota Mining and Manufacturing CompanyInventors: Richard M. Flynn, Mark W. Grenfell, Frank W. Klink, Daniel R. Vitcak
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Patent number: 5532310Abstract: 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: GrantFiled: April 28, 1995Date of Patent: July 2, 1996Assignee: Minnesota Mining and Manufacturing CompanyInventors: Mark W. Grenfell, Richard M. Flynn, Patricia M. Savu
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Patent number: 5484489Abstract: An azeotropic composition includes a perfluorinated cycloaminoether and an organic solvent.Type: GrantFiled: January 6, 1995Date of Patent: January 16, 1996Assignee: Minnesota Mining and Manufacturing CompanyInventors: Richard M. Flynn, Mark W. Grenfell, Frank W. Klink, Daniel R. Vitcak
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Patent number: 5401429Abstract: An azeotropic composition includes a perfluorinated cycloaminoether and an organic solvent.Type: GrantFiled: April 1, 1993Date of Patent: March 28, 1995Assignee: Minnesota Mining and Manufacturing CompanyInventors: Richard M. Flynn, Mark W. Grenfell, Frank W. Klink, Daniel R. Vitcak
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Patent number: 5369983Abstract: 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: GrantFiled: April 17, 1992Date of Patent: December 6, 1994Assignee: Minnesota Mining and Manufacturing CompanyInventor: Mark W. Grenfell
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Patent number: 5030805Abstract: 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: GrantFiled: February 20, 1990Date of Patent: July 9, 1991Assignee: Minnesota Mining and Manufacturing CompanyInventors: Timothy A. Koenig, John A. Pignato, Jr., Mark W. Grenfell