Patents by Inventor Darrell Gene Hollis

Darrell Gene Hollis 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).

  • Patent number: 9598337
    Abstract: Processes for isolating 1,1,1,2,3-pentachloropropane from a crude product stream containing the 1,1,1,2,3-pentachloropropane and ferric chloride. The processes may include deep distillation of the crude, treatment of the crude with a reagent that deactivates the ferric chloride followed by distillation on the deactivated crude stream, aqueous washing of the crude product stream to remove ferric chloride followed by distillation on the deactivated crude stream. Other embodiments simultaneously prepare 1,1,2,3-tetrachloroprene and 1,1,1,2,3-pentachloroprane.
    Type: Grant
    Filed: February 12, 2014
    Date of Patent: March 21, 2017
    Assignee: OCCIDENTAL CHEMICAL CORPORATION
    Inventors: John Lee Dawkins, Darrell Gene Hollis, Rodney L. Klausmeyer, Keith S. Kramer, Michael Andrew Garmon
  • Patent number: 9586877
    Abstract: Processes for isolating 1,1,1,2,3-pentachloropropane from a crude product stream containing the 1,1,1,2,3-pentachloropropane and ferric chloride. The processes may include deep distillation of the crude, treatment of the crude with a reagent that deactivates the ferric chloride followed by distillation on the deactivated crude stream, aqueous washing of the crude product stream to remove ferric chloride followed by distillation on the deactivated crude stream. Other embodiments simultaneously prepare 1,1,2,3-tetrachloroprene and 1,1,1,2,3-pentachloroprane.
    Type: Grant
    Filed: June 4, 2015
    Date of Patent: March 7, 2017
    Assignee: OCCIDENTAL CHEMICAL CORPORATION
    Inventors: John Lee Dawkins, Darrell Gene Hollis, Rodney L. Klausmeyer, Keith S. Kramer, Michael Andrew Garmon
  • Publication number: 20150376094
    Abstract: Processes for isolating 1,1,1,2,3-pentachloropropane from a crude product stream containing the 1,1,1,2,3-pentachloropropane and ferric chloride. The processes may include deep distillation of the crude, treatment of the crude with a reagent that deactivates the ferric chloride followed by distillation on the deactivated crude stream, aqueous washing of the crude product stream to remove ferric chloride followed by distillation on the deactivated crude stream. Other embodiments simultaneously prepare 1,1,2,3-tetrachloroprene and 1,1,1,2,3-pentachloroprane.
    Type: Application
    Filed: February 12, 2014
    Publication date: December 31, 2015
    Inventors: John Lee DAWKINS, Darrell Gene HOLLIS, Rodney L. KLAUSMEYER, Keith S. KRAMER, Michael Andrew GARMON
  • Publication number: 20150266799
    Abstract: Processes for isolating 1,1,1,2,3-pentachloropropane from a crude product stream containing the 1,1,1,2,3-pentachloropropane and ferric chloride. The processes may include deep distillation of the crude, treatment of the crude with a reagent that deactivates the ferric chloride followed by distillation on the deactivated crude stream, aqueous washing of the crude product stream to remove ferric chloride followed by distillation on the deactivated crude stream. Other embodiments simultaneously prepare 1,1,2,3-tetrachloroprene and 1,1,1,2,3-pentachloroprane.
    Type: Application
    Filed: June 4, 2015
    Publication date: September 24, 2015
    Inventors: John Lee DAWKINS, Darrell Gene HOLLIS, Rodney L. KLAUSMEYER, Keith S. KRAMER, Michael Andrew GARMON
  • Patent number: 9067858
    Abstract: Processes for isolating 1,1,1,2,3-pentachloropropane from a crude product stream containing the 1,1,1,2,3-pentachloropropane and ferric chloride. The processes may include deep distillation of the crude, treatment of the crude with a reagent that deactivates the ferric chloride followed by distillation on the deactivated crude stream, aqueous washing of the crude product stream to remove ferric chloride followed by distillation on the deactivated crude stream. Other embodiments simultaneously prepare 1,1,2,3-tetrachloroprene and 1,1,1,2,3-pentachloroprane.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: June 30, 2015
    Assignee: Occidental Chemical Corporation
    Inventors: John Lee Dawkins, Darrell Gene Hollis, Rodney L. Klausmeyer, Keith S. Kramer, Michael Andrew Garmon