Patents by Inventor Jospeh E. Paganessi

Jospeh E. Paganessi 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 and system for separation and recovery of perfluorocompound gases
    Patent number: 6444011
    Abstract: Processes and systems to recover at least one perfluorocompound gas from a gas mixture are provided. In one embodiment the inventive process comprises the steps of a) providing a gas mixture comprising at least one perfluorocompound gas and at least one carrier gas, the gas mixture being at a predetermined pressure; b) providing at least once glassy polymer membrane having a feed side and a permeate side; c) contacting the feed side of the at least one membrane with the gas mixture; d) withdrawing from the feed side of the membrane as a non-permeate stream at a pressure which is substantially equal to the predetermined pressure a concentrated gas mixture comprising essentially the at least one perfluorocompound gas; and e) withdrawing from the permeate side of the membrane as a permeate stream a depleted gas mixture comprising essentially the at least one carrier gas.
    Type: Grant
    Filed: January 25, 2001
    Date of Patent: September 3, 2002
    Assignee: American Air Liqide, Inc.
    Inventors: Yao-En Li, Jospeh E. Paganessi, David Vassallo, Gregory K. Fleming
  • Process and system for separation and recovery of perfluorocompound gases
    Patent number: 6312502
    Abstract: Processes and systems to recover at least one perfluorocompound gas from a gas mixture are provided. In one embodiment the inventive process comprises the steps of a) providing a gas mixture comprising at least one perfluorocompound gas and at least one carrier gas, the gas mixture being at a predetermined pressure; b) providing at least one glassy polymer membrane having a feed side and a permeate side; c) contacting the feed side of the at least one membrane with the gas mixture; d) withdrawing from the feed side of the membrane as a non-permeate stream at a pressure which is substantially equal to the predetermined pressure a concentrated gas mixture comprising essentially the at least one perfluorocompound gas; and e) withdrawing from the permeate side of the membrane as a permeate stream a depleted gas mixture comprising essentially the at least one carrier gas.
    Type: Grant
    Filed: April 23, 1999
    Date of Patent: November 6, 2001
    Assignees: L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude, American Air Liquide
    Inventors: Yao-En Li, Jospeh E. Paganessi, David Vassallo, Gregory K. Fleming
  • Process and system for separation and recovery of perfluorocompound gases
    Patent number: 6254666
    Abstract: Processes and systems to recover at least one perfluorocompound gas from a gas mixture are provided. In one embodiment the inventive process comprises the steps of a) providing a gas mixture comprising at least one perfluorocompound gas and at least one carrier gas, the gas mixture being at a predetermined pressure; b) providing at least one glassy polymer membrane having a feed side and a permeate side; c) contacting the feed side of the at least one membrane with the gas mixture; d) withdrawing from the feed side of the membrane as a non-permeate stream at a pressure which is substantially equal to the predetermined pressure a concentrated gas mixture comprising essentially the at least one perfluorocompound gas; and e) withdrawing from the permeate side of the membrane as a permeate stream a depleted gas mixture comprising essentially the at least one carrier gas.
    Type: Grant
    Filed: March 28, 2000
    Date of Patent: July 3, 2001
    Assignees: L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude, American Air Liquide
    Inventors: Yao-En Li, Jospeh E. Paganessi, David Vassallo, Gregory K. Fleming
  • Process and system for separation and recovery of perfluorocompound gases
    Patent number: 6214089
    Abstract: Processes and systems to recover at least one perfluorocompound gas from a gas mixture are provided. In one embodiment the inventive process comprises the steps of a) providing a gas mixture comprising at least one perfluorocompound gas and at least one carrier gas, the gas mixture being at a predetermined pressure; b) providing at least one glassy polymer membrane having a feed side and a permeate side; c) contacting the feed side of the at least one membrane with the gas mixture; d) withdrawing from the feed side of the membrane as a non-permeate stream at a pressure which is substantially equal to the predetermined pressure a concentrated gas mixture comprising essentially the at least one perfluorocompound gas; and e) withdrawing from the permeate side of the membrane as a permeate stream a depleted gas mixture comprising essentially the at least one carrier gas.
    Type: Grant
    Filed: July 21, 1998
    Date of Patent: April 10, 2001
    Assignees: American Air Liquide, Inc., L'Air Liquide, Societe Anonyme pour l'Etude et, l'Exploitation des Procedes Georges Claude
    Inventors: Yao-En Li, Jospeh E. Paganessi, David Vassallo, Gregory K. Fleming