Patents by Inventor by Florence M. Hutchinson, executrix

by Florence M. Hutchinson, executrix 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).

  • Constant boiling admixtures
    Patent number: 4164471
    Abstract: Constant boiling binary admixtures are formed by 1,2-dichloro-1,1-difluoroethane (F-132B) with acetone, with methanol, and with ethanol; and a constant boiling ternary admixture is formed with diethyl ether and ethanol. Constant boiling binary admixtures are formed by 1,1,2-trifluoroethane (F-132) with octafluorocyclobutane, with 1,2-dichloro-1,1,2,2-tetrafluoroethane, with dichlorofluoromethane, with trichlorofluoromethane, with 1,1,2-trichloro-1,2,2-trifluoroethane, and with 1,1,1-trifluoro-2-chloroethane.
    Type: Grant
    Filed: December 28, 1977
    Date of Patent: August 14, 1979
    Assignee: Phillips Petroleum Company
    Inventors: William M. Hutchinson, deceased, by Florence M. Hutchinson, executrix
  • Constant boiling admixtures
    Patent number: 4157310
    Abstract: Constant boiling binary admixtures are formed by 1,2-dichloro-1,1-difluoroethane (F-132B) with acetone, with methanol, and with ethanol; and a constant boiling ternary admixture is formed with diethyl ether and ethanol. Constant boiling binary admixtures are formed by 1,1,2-trifluoroethane (F-132) with octafluorocyclobutane, with 1,2-dichloro-1,1,2,2-tetrafluoroethane, with dichlorofluoromethane, with trichlorofluoromethane, with 1,1,2-trichloro-1,2,2-trifluoroethane, and with 1,1,1-trifluoro-2-chloroethane.
    Type: Grant
    Filed: December 28, 1977
    Date of Patent: June 5, 1979
    Assignee: Phillips Petroleum Company
    Inventors: William M. Hutchinson, deceased, by Florence M. Hutchinson, executrix
  • Constant boiling admixtures
    Patent number: 4144175
    Abstract: Constant boiling binary admixtures are formed by 1,2-dichloro-1,1-difluoroethane (F-132B) with acetone, with methanol, and with ethanol; and a constant boiling ternary admixture is formed with diethyl ether and ethanol. Constant boiling binary admixtures are formed by 1,1,2-trifluoroethane (F-132) with octafluorocyclobutane, with 1,2-dichloro-1,1,2,2-tetrafluoroethane, with dichlorofluoromethane, with trichlorofluoromethane, with 1,1,2-trichloro-1,2,2-trifluoroethane, and with 1,1,1-trifluoro-2-chloroethane.
    Type: Grant
    Filed: December 28, 1977
    Date of Patent: March 13, 1979
    Assignee: Phillips Petroleum Company
    Inventors: William M. Hutchinson, deceased, by Florence M. Hutchinson, executrix
  • Constant boiling admixtures
    Patent number: 4144187
    Abstract: Constant boiling binary admixtures are formed by 1,2-dichloro-1,1-difluoroethane (F-132B) with acetone, with methanol, and with ethanol; and a constant boiling ternary admixture is formed with diethyl ether and ethanol. Constant boiling binary admixtures are formed by 1,1,2-trifluoroethane (F-132) with octafluorocyclobutane, with 1,2-dichloro-1,1,2,2-tetrafluoroethane, with dichlorofluoromethane, with trichlorofluoromethane, with 1,1,2-trichloro-1,2,2-trifluoroethane, and with 1,1,1-trifluoro-2-chloroethane.
    Type: Grant
    Filed: December 28, 1977
    Date of Patent: March 13, 1979
    Assignee: Phillips Petroleum Company
    Inventors: William M. Hutchinson, deceased, by Florence M. Hutchinson, executrix
  • Constant boiling admixtures
    Patent number: 4134849
    Abstract: Constant boiling binary admixtures are formed by 1,2-dichloro-1,1-difluoroethane (F-132B) with acetone, with methanol, and with ethanol; and a constant boiling ternary admixture is formed with diethyl ether and ethanol. Constant boiling binary admixtures are formed by 1,1,2-trifluoroethane (F-143) with octafluorocyclobutane, with 1,2-dichloro-1,1,2,2-tetrafluoroethane, with dichlorofluoromethane, with trichlorofluoromethane, with 1,1,2-trichloro-1,2,2-trifluoroethane, and with 1,1,1-trifluoro-2-chloroethane.
    Type: Grant
    Filed: January 30, 1978
    Date of Patent: January 16, 1979
    Assignee: Phillips Petroleum Company
    Inventors: William M. Hutchinson, deceased, by Florence M. Hutchinson, executrix
  • Constant boiling admixtures
    Patent number: 4097398
    Abstract: Constant boiling binary admixtures are formed by 1,2-dichloro-1,1-difluoroethane (F-132B) with acetone, with methanol, and with ethanol; and a constant boiling ternary admixture is formed with diethyl ether and ethanol. Constant boiling binary admixtures are formed by 1,1,2-trifluoroethane (F-143) with octafluorocyclobutane, with 1,2-dichloro-1,1,2,2-tetrafluoroethane, with dichlorofluoromethane, with trichlorofluoromethane, with 1,1,2-trichloro-1,2,2-trifluoroethane, and with 1,1,1-trifluoro-2-chloroethane.
    Type: Grant
    Filed: March 31, 1977
    Date of Patent: June 27, 1978
    Assignee: Phillips Petroleum Company
    Inventors: William Milton Hutchinson, deceased, by Florence M. Hutchinson, executrix
  • Constant boiling admixtures
    Patent number: 4086180
    Abstract: Constant boiling binary admixtures are formed by 1,2-dichloro-1,1-difluoroethane (F-132B) with acetone, with methanol, and with ethanol; and a constant boiling ternary admixture is formed with diethyl ether and ethanol. Constant boiling binary admixtures are formed by 1,1,2-trifluoroethane (F-143) with octafluorocyclobutane, with 1,2-dichloro-1,1,2,2-tetrafluoroethane, with dichlorofluoromethane, with trichlorofluoromethane, with 1,1,2-trichloro-1,2,2-trifluoroethane, and with 1,1,1-trifluoro-2-chloroethane.
    Type: Grant
    Filed: March 31, 1977
    Date of Patent: April 25, 1978
    Assignee: Phillips Petroleum Company
    Inventors: William Milton Hutchinson, deceased, by Florence M. Hutchinson, executrix
  • Constant boiling admixtures
    Patent number: 4039465
    Abstract: Constant boiling binary admixtures are formed by 1,2-dichloro-1,1-difluoroethane (F-132B) with acetone, with methanol, and with ethanol; and a constant boiling ternary admixture is formed with diethyl ether and ethanol. Constant boiling binary admixtures are formed by 1,1,2-trifluoroethane (F-143) with octafluorocyclolbutane, with 1,2-dichloro-1,1,2,2-tetrafluoroethane, with dichlorofluoromethane, with trichlorofluoramethane, with 1,1,2-trichloro-1,2,2-trifluoroethane, and with 1,1,1-trifluoro-2-chloroethane.
    Type: Grant
    Filed: May 27, 1976
    Date of Patent: August 2, 1977
    Assignee: Phillips Petroleum Company
    Inventors: William Milton Hutchinson, deceased, by Florence M. Hutchinson, executrix
  • Purification of fluorinated ethers
    Patent number: 4025567
    Abstract: A process for the purification of partially fluorinated dimethyl ethers to remove impurities from bis(difluoromethyl) ether and from difluoromethyl fluoromethyl ether by washing the ether-containing stream with sulfuric acid or hydrochloric acid. The acid extract is diluted with water to form two phases which can be separated.
    Type: Grant
    Filed: November 20, 1974
    Date of Patent: May 24, 1977
    Assignee: Phillips Petroleum Company
    Inventors: William Milton Hutchinson, deceased, by Florence M. Hutchinson, executrix