Patents by Inventor Thomas H. Johnson

Thomas H. Johnson 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).

  • Process for preparing allyl- and 2-chloropropyl- or propenylarene compounds
    Patent number: 4489212
    Abstract: Arenes are reacted with allyl chloride to produce allylarenes and 2-chloropropyl- or propenylarenes using a catalyst comprising a metal oxide substrate having tantalum (V) halide/oxide bound to the surface of the substrate.
    Type: Grant
    Filed: October 25, 1983
    Date of Patent: December 18, 1984
    Assignee: Shell Oil Company
    Inventor: Thomas H. Johnson
  • Tantalum (V) halide/oxide-metal oxide compositions and a process for their preparation
    Patent number: 4489171
    Abstract: Compositions are disclosed which comprise metal oxide substrates having tantalum (V) halide(s)/oxide(s) bound to the surface thereof.
    Type: Grant
    Filed: August 29, 1983
    Date of Patent: December 18, 1984
    Assignee: Shell Oil Company
    Inventor: Thomas H. Johnson
  • Niobium (V) halide/oxide-metal oxide compositions and a process for _their preparation
    Patent number: 4480049
    Abstract: Compositions are disclosed which comprise metal oxide substrates having niobium (V) halide(s)/oxide(s) bound to the surface thereof.
    Type: Grant
    Filed: August 29, 1983
    Date of Patent: October 30, 1984
    Assignee: Shell Oil Company
    Inventor: Thomas H. Johnson
  • Arene alkylation with akyl halides using metal oxide-tantalum halide/oxide catalysts
    Patent number: 4476340
    Abstract: Benzene and substituted benzene compounds are alkylated with alkyl halides by contact with a catalyst which comprises a metal oxide substrate having tantalum (V) halide/oxide bound to the surface of the substrate.
    Type: Grant
    Filed: September 23, 1983
    Date of Patent: October 9, 1984
    Assignee: Shell Oil Company
    Inventor: Thomas H. Johnson
  • Olefin oligomerization with tantalum halide/oxide-metal oxide catalysts
    Patent number: 4476343
    Abstract: Olefins are oligomerized to higher oligomers by contact with a catalyst comprising a metal oxide substrate having tantalum (V) halide/oxide bound to the surface thereof.
    Type: Grant
    Filed: September 23, 1983
    Date of Patent: October 9, 1984
    Assignee: Shell Oil Company
    Inventor: Thomas H. Johnson
  • Niobium or tantalum/halogen-containing catalyst regeneration process
    Patent number: 4469804
    Abstract: Catalysts containing niobium or tantalum halides which have been deactivated by contact with oxygen are regenerated by being contacted with a halogenated hydrocarbon.
    Type: Grant
    Filed: September 23, 1983
    Date of Patent: September 4, 1984
    Assignee: Shell Oil Company
    Inventor: Thomas H. Johnson
  • Metal oxide-niobium (V) hydride/oxide compositions and process for preparing them
    Patent number: 4467048
    Abstract: Compositions are disclosed which comprise a metal oxide substrate having niobium (V) hydride/oxide bound to the surface thereof.
    Type: Grant
    Filed: August 30, 1983
    Date of Patent: August 21, 1984
    Assignee: Shell Oil Company
    Inventor: Thomas H. Johnson
  • Metal oxide-tantalum (V) hydride/oxide compositions and process for preparing them
    Patent number: 4467047
    Abstract: Compositions are disclosed which comprise a metal oxide substrate having tantalum (V) hydride/oxide bound to the surface thereof.
    Type: Grant
    Filed: August 30, 1983
    Date of Patent: August 21, 1984
    Assignee: Shell Oil Company
    Inventor: Thomas H. Johnson
  • Arene alkylation with metal oxide-tantalum halide/oxide catalysts
    Patent number: 4463207
    Abstract: Benzene and substituted benzene compounds are alkylated with olefins by contact with a catalyst which comprises a metal oxide substrate having tantalum (V) halide/oxide bound to the surface of the substrate.
    Type: Grant
    Filed: September 23, 1983
    Date of Patent: July 31, 1984
    Assignee: Shell Oil Company
    Inventor: Thomas H. Johnson
  • Olefin isomerization process
    Patent number: 4423276
    Abstract: Internal olefins in the 4 to 30 carbon number range are isomerized to alpha olefins, utilizing cyclopentadienyltantalum compounds in either a catalyst or reagent mode. Under a preferred practice of the process of this invention, internal olefin is contacted with the reagent to form a first complex, alpha olefin is liberated from said first complex upon contact with carbon monoxide to yield a second complex, and reagent is regenerated from said second complex upon contact with water.
    Type: Grant
    Filed: November 26, 1982
    Date of Patent: December 27, 1983
    Assignee: Shell Oil Company
    Inventor: Thomas H. Johnson
  • Apparatus for stretching an animal hide
    Patent number: 4274270
    Abstract: An apparatus for stretching an animal hide, such as a beaver hide, to allow the hide to dry, the stretcher including a frame of four tubular members of equal length secured at a common point and extending in a common plane and spaced about 90.degree. from each other, a stretcher member for each of the frame tubular members, each stretcher member extending radially from the frame, each stretcher member having an arcuate outer circumferential portion, a plurality of spaced prongs extending from each of the arcuate portions adaptable to engage the periphery of an animal hide, and means of radially extending outwardly the stretcher members so that the hide is stretched and retained in a stretched position while drying.
    Type: Grant
    Filed: October 1, 1979
    Date of Patent: June 23, 1981
    Inventor: Thomas H. Johnson