Patents by Inventor Robert T. Jernigan

Robert T. Jernigan 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).

  • High purity polyether polyols
    Patent number: 4946939
    Abstract: High purity polyether polyol compositions such as polyethylene glycol are made having small amounts of impurities such as oligomers of active hydrogen compounds with alkylene oxides. The high purity is achieved by subjecting the polyether polyol compositions to membrane filtration to get less than about 10 parts per million of the low molecular weight oligomers.
    Type: Grant
    Filed: May 30, 1989
    Date of Patent: August 7, 1990
    Assignee: The Dow Chemical Company
    Inventors: Frank H. Murphy, Robert T. Jernigan, Jeff G. Grierson, Wayne G. Wessels
  • Polyalkylhydrosiloxanes as inorganic silicate stabilizers
    Patent number: 4612134
    Abstract: Polyalkylhydrosiloxanes that are soluble in glycol are used to stabilize antifreeze/coolant formulations that contain inorganic silicate corrosion inhibitors. The stabilizers have the following formulaMe.sub.3 Si--O--[Si(Me).sub.2 --O].sub.x --[SiHMe--O].sub.y --SiMe.sub.3where the ratio of x to y is from 0 to about 10.
    Type: Grant
    Filed: August 8, 1985
    Date of Patent: September 16, 1986
    Assignee: The Dow Chemical Company
    Inventors: Richard A. Pierce, Robert T. Jernigan
  • Purifying geothermal steam
    Patent number: 4528817
    Abstract: Residual geothermal steam containing hydrogen sulfide from a steam turbine is condensed with an aqueous solution of ferric chelate whereby the hydrogen sulfide is converted to free sulfur and the ferric chelate is converted to ferrous chelate. The ferrous chelate is subsequently oxidized back to the ferric state and reused.
    Type: Grant
    Filed: September 13, 1983
    Date of Patent: July 16, 1985
    Assignee: The Dow Chemical Company
    Inventor: Robert T. Jernigan
  • Purifying geothermal steam
    Patent number: 4468929
    Abstract: Residual geothermal steam containing hydrogen sulfide from a steam turbine is condensed with an aqueous solution of ferric chelate in a direct or indirect condensor whereby the hydrogen sulfide is converted to free sulfur and the ferric chelate is converted to ferrous chelate. The ferrous chelate is subsequently oxidized back to the ferric state and reused.
    Type: Grant
    Filed: October 21, 1983
    Date of Patent: September 4, 1984
    Assignee: The Dow Chemical Company
    Inventor: Robert T. Jernigan
  • Purifying geothermal steam
    Patent number: 4414817
    Abstract: Residual geothermal steam containing hydrogen sulfide from a steam turbine is condensed with an aqueous solution of ferric chelate whereby the hydrogen sulfide is converted to free sulfur and the ferric chelate is converted to ferrous chelate. The ferrous chelate is subsequently oxidized back to the ferric state and reused.
    Type: Grant
    Filed: November 27, 1981
    Date of Patent: November 15, 1983
    Assignee: The Dow Chemical Company
    Inventor: Robert T. Jernigan
  • Glycol compositions containing a phosphorous-modified silane
    Patent number: 4367154
    Abstract: Glycol concentrates containing alkali metal silicates are rendered gellation resistant by the addition of phosphonates having one of the formulas,(I) (RO).sub.3-m (R').sub.m Si--R.sup.2 --O--P(O) (OR.sup.3)(R.sup.4),(II) [(RO).sub.3-m (R').sub.m Si--R.sup.2 --O--.sub.2 P(O)(R4)or(III) mixtures of I and II,wherein m is 0-2R, R.sup.3, R.sup.4 are alkyl groups of 1-4 carbons,R' is an alkyl group of 1-4 carbons, phenyl, and aralkyl group of 7-10 carbons, andR.sup.2 is an alkylene group of 1-4 carbons.
    Type: Grant
    Filed: July 29, 1981
    Date of Patent: January 4, 1983
    Assignee: The Dow Chemical Company
    Inventor: Robert T. Jernigan
  • Process for converting alkali metal iodates to periodates
    Patent number: 4176167
    Abstract: Alkali metal iodates are converted to the corresponding periodate by contacting the iodate with a hydroxide of the same or different alkali metal and an oxygen containing gas at temperatures of from 150.degree. C. to 600.degree. C.
    Type: Grant
    Filed: September 19, 1977
    Date of Patent: November 27, 1979
    Assignee: The Dow Chemical Company
    Inventors: Robert T. Jernigan, Byford D. Sheffield