Patents Represented by Attorney, Agent or Law Firm Stephen S. Grace
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Patent number: 6011074Abstract: Novel organic ion-exchange polymers and membranes formed from these polymers provide improved performance in electrolytic cells. The membranes exhibit an expanded micro-structure as the result of the removal of organic groups previously reacted with the ion-exchange groups of the polymer. The polymers are also useful in finely divided form as catalysts or deposited on a catalyst support. When formed into sheets, the polymers are useful as membranes in the separation of miscible liquids and in the separation of gases.Type: GrantFiled: February 2, 1998Date of Patent: January 4, 2000Assignee: The Dow Chemical CompanyInventors: Marius W. Sorenson, Robert A. Cipriano, Jose J. Longoria, John D. Weaver
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Patent number: 5629350Abstract: Stable, concentrated aqueous suspensions of ortho-phenylphenol (OPP) which contribute minimal chemical oxygen demand and methods of preparing and using said suspensions in biocidal applications have been discovered. The formulations comprise from about 3 to about 70 weight percent of OPP suspended in about 30 to about 97 weight percent water in the presence of a suspending amount of a thixotrope that exhibits Ellis-Plastic behavior.Type: GrantFiled: March 20, 1996Date of Patent: May 13, 1997Assignee: The Dow Chemical CompanyInventor: Charles D. Gartner
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Patent number: 5627135Abstract: Stable, concentrated aqueous suspensions of 2,2-dibromo-3-nitrilopropionamide which contribute minimal chemical oxygen demand to systems treated therewith and methods of preparing and using said suspensions in biocidal applications have been discovered. The formulations comprise from about 3 to about 70 weight percent 2,2-dibromo-3-nitrilopropionamide suspended in about 30 to about 97 weight percent water in the presence of a suspending amount of a thixotrope that exhibits Ellis-Plastic behavior, such as xantham gum and locust bean gum, at a pH of from about 1 to about 4.Type: GrantFiled: March 20, 1996Date of Patent: May 6, 1997Assignee: The Dow Chemical CompanyInventor: Charles D. Gartner
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Patent number: 4724260Abstract: Monomeric compositions comprising a monomer containing one arylcyclobutane moiety, and a molecular group comprising at least one unsaturated alkyl group are provided.Type: GrantFiled: February 28, 1986Date of Patent: February 9, 1988Assignee: The Dow Chemical CompanyInventors: Robert A. Kirchhoff, Alan K. Schrock, Stephen F. Hahn
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Patent number: 4704285Abstract: Solid tablets of a therapeutically active composition exhibit sustained release properties when compressed with a fine particle sized hydroxypropyl cellulose ether composition.Type: GrantFiled: November 18, 1985Date of Patent: November 3, 1987Assignee: The Dow Chemical CompanyInventor: Daniel A. Alderman
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Patent number: 4518681Abstract: An improved process for making synthetic paper/film from a blend of polystyrene and polyethylene resins wherein titanium dioxide is employed as the sole inorganic filler and the film is given an oxidizing post-treatment, such as corona discharge or surface sulfonation. The film so-prepared has improved adhesion to photographic gel emulsions.Type: GrantFiled: December 23, 1983Date of Patent: May 21, 1985Assignee: The Dow Chemical CompanyInventors: Oscar Johnson, Robert A. Luecke
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Patent number: 4363673Abstract: A method of removing residual carbon from solid surfaces, such as metal or glass, by contacting the surface with sulfur trioxide and thereafter rinsing the surface. The surface may be subsequently contacted with a passivating solution.Type: GrantFiled: May 22, 1981Date of Patent: December 14, 1982Assignee: The Dow Chemical CompanyInventors: William J. Settineri, Harold E. Klassen, Milton C. Tolly
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Patent number: H2002Abstract: A fiber optic probe apparatus useful for conducting Raman spectroscopy remotely over optical fibers with minimal interference from Raman scattering within said fibers which includes three elements. The first element is at least one transmitting optical fiber having a first end and a second end. The second element is at least one collecting optical fiber for collecting light from a sample positioned near the first end of the transmitting optical fiber, the collecting optical fiber having a first end and a second end, the first end of the collecting optical fiber being in closely spaced relationship with the first end of the transmitting optical fiber wherein the longitudinal axis of the first end of the collecting optical fiber converges with the longitudinal axis of the first end of the transmitting optical fiber at an angle of less than forty five degrees. The third element is at the heart of the invention.Type: GrantFiled: February 14, 1997Date of Patent: November 6, 2001Assignee: The Dow Chemical CompanyInventors: Richard D. McLachlan, Mary Anne Leugers
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Patent number: H1574Abstract: There is an evacuated insulation panel having a corestock of a polymer foam having an open cell content of 70 percent or more. There is a getter material in the interior of the panel to adsorb gases and vapors which may permeate into the panel over an extended period of time.Type: GrantFiled: February 7, 1996Date of Patent: August 6, 1996Assignee: The Dow Chemical CompanyInventors: Gregg A Motter, James E. Kosinski
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Patent number: H1800Abstract: A method for oxychlorinating ethylene to ethylene dichloride utilizing a two reactor oxychlorination system in which the oxygen and hydrogen chloride feeds are split between the reactors such that the volume ratio of HCl fed to the first reactor to the HCl fed to the second reactor, and the volume ratio of O.sub.2 fed to the first reactor to the O.sub.2 fed to the second reactor are both in the range of about 50:50 to about 99:1.Type: GrantFiled: July 16, 1997Date of Patent: August 3, 1999Assignee: The Dow Chemical CompanyInventors: Leopoldo Salinas, III, Thomas Earl Morris
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Patent number: H1830Abstract: This invention relates to computer-implemented tax preparation and tax submission accounting, and the invention is directed to providing a system which enables use-tax accrual and determination. The described computer system has transaction record acquisition logic for acquiring transaction information characterizing purchases of goods and services and for generating transaction records; use-tax accrual logic; and tax rate acquisition logic for acquiring tax jurisdiction codes, at least one inclusive accounting group registry respective to taxes, and tax information respective to the tax jurisdiction codes from an external tax information source. The invention also provides data alignment logic used to assure that data elements used in tax determination are interactively harmonious and mutually comprehensive.Type: GrantFiled: June 17, 1997Date of Patent: January 4, 2000Assignee: The Dow Chemical CompanyInventors: Rosalyn A. Petrimoulx, Tamara Marie Wellington, Nancy Lou Huey Kanter, Maria Dalia Montague, David Joseph Burgie, Patrick A. Carey