Patents by Inventor Frederic Perras

Frederic Perras 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).

  • Publication number: 20240157338
    Abstract: Disclosed herein is a catalyst which comprises a silica core having an outer surface and a mesoporous silica shell having an outer surface and an inner surface with the inner surface being inside the outer surface of said mesoporous silica shell proximate to and surrounding the outer surface of said silica core. Wherein the outer surface of the mesoporous silica shell has openings leading to pores within the mesoporous silica shell which extend toward the outer surface of said silica core. The catalyst also includes catalytically active metal nanoparticles positioned within the pores proximate to said core, wherein the catalytic metal nanoparticles comprise about 0.0001 wt % to about 1.0 wt % of the catalyst. Also disclosed are methods of making the catalyst and using it to carry out a process for catalytically hydrogenolysizing a polyolefinic polymer.
    Type: Application
    Filed: November 13, 2023
    Publication date: May 16, 2024
    Inventors: Aaron D. SADOW, Wenyu HUANG, Frédéric A. PERRAS, Marek PRUSKI, Akalanka TENNAKOON, Xun WU, Anne M. LAPOINTE
  • Patent number: 11857951
    Abstract: Disclosed herein is a catalyst which comprises a silica core having an outer surface and a mesoporous silica shell having an outer surface and an inner surface with the inner surface being inside the outer surface of said mesoporous silica shell proximate to and surrounding the outer surface of said silica core. Wherein the outer surface of the mesoporous silica shell has openings leading to pores within the mesoporous silica shell which extend toward the outer surface of said silica core. The catalyst also includes catalytically active metal nanoparticles positioned within the pores proximate to said core, wherein the catalytic metal nanoparticles comprise about 0.0001 wt % to about 1.0 wt % of the catalyst. Also disclosed are methods of making the catalyst and using it to carry out a process for catalytically hydrogenolysizing a polyolefinic polymer.
    Type: Grant
    Filed: October 8, 2021
    Date of Patent: January 2, 2024
    Assignees: IOWA STATE UNIVERSITY RESEARCH FOUNDATION, INC., CORNELL UNIVERSITY
    Inventors: Aaron D. Sadow, Wenyu Huang, Frédéric A. Perras, Marek Pruski, Akalanka Tennakoon, Xun Wu, Anne M. Lapointe
  • Publication number: 20230219870
    Abstract: Disclosed herein is the selective functionalization of one or more hydrocarbons ranging from the longest macromolecules to methane as the smallest. Functionalization is achieved through C-H activation of the one or more hydrocarbons and is carried out by the catalytic complex described herein. Also disclosed is the compound of formula (I) and the compound of formula (II).
    Type: Application
    Filed: November 8, 2022
    Publication date: July 13, 2023
    Inventors: Aaron David SADOW, Uddhav KANBUR, Frederic A. PERRAS, Alexander L. PATERSON, Andrew KOCEN, Geoffrey W. COATES, Anne M. LAPOINTE, Massimiliano DELFERRO, Ryan A. HACKLER, Jessica RODRIGUEZ
  • Patent number: 11552879
    Abstract: Systems and methods for creating loopback packets for transmission through a section of a network for the purpose of testing the operability of links and nodes in this section of the network are provided. A method, according to one implementation, includes a step of obtaining information, by a Network Element (NE), about the topology of the network related to at least the nodes in direct communication with a peer node. The method also includes a step of generating one or more loopback packets, where each loopback packet includes at least a header having a path list including one or more nodes of the plurality of nodes in the network. Each path list defines an order of nodes through which the respective loopback packet is to be transmitted.
    Type: Grant
    Filed: December 14, 2021
    Date of Patent: January 10, 2023
    Assignee: Ciena Corporation
    Inventors: Muthurajah Sivabalan, Sami Boutros, Frédéric Perras
  • Publication number: 20220111356
    Abstract: Disclosed herein is a catalyst which comprises a silica core having an outer surface and a mesoporous silica shell having an outer surface and an inner surface with the inner surface being inside the outer surface of said mesoporous silica shell proximate to and surrounding the outer surface of said silica core. Wherein the outer surface of the mesoporous silica shell has openings leading to pores within the mesoporous silica shell which extend toward the outer surface of said silica core. The catalyst also includes catalytically active metal nanoparticles positioned within the pores proximate to said core, wherein the catalytic metal nanoparticles comprise about 0.0001 wt % to about 1.0 wt % of the catalyst. Also disclosed are methods of making the catalyst and using it to carry out a process for catalytically hydrogenolysizing a polyolefinic polymer.
    Type: Application
    Filed: October 8, 2021
    Publication date: April 14, 2022
    Inventors: Aaron D. SADOW, Wenyu HUANG, Frédéric A. PERRAS, Marek PRUSKI, Akalanka TENNAKOON, Xun WU, Anne M. LAPOINTE
  • Patent number: 8139485
    Abstract: A method for managing data packets passing through an Ethernet node having multiple ingress ports and multiple egress ports, the ingress ports receiving the data packets from at least one service, and the egress ports configured with at least one Logical Transport Resource (LTR) configured as a predefined path between one of the egress ports and a destination in the Ethernet network. The method comprises mapping one or more of the services to each of the at least one LTR, shaping each of the at least one LTR to a configured rate, and transmitting data packets to the Ethernet network via the egress ports.
    Type: Grant
    Filed: January 22, 2009
    Date of Patent: March 20, 2012
    Assignee: Ciena Corporation
    Inventors: James D. Arseneault, Chris Barrett, Allan Beaudette, Nicholas J. Cadwgan, Pablo Frank, Natalie Giroux, Frederic Perras, Brian R. Smith, Kenneth W. Young
  • Patent number: 7839795
    Abstract: A method of fault notification in a carrier Ethernet having the capability of generating and transmitting OAM packets having flag fields, comprises inserting a bit in one of the flag fields to indicate the presence of service-affecting information in the OAM packets, detecting the presence of the inserted bit at the end of a data path, and performing a service protection action in response to the detection of the inserted bit prior to parsing the information in the message. One type of service protection action is protection switching.
    Type: Grant
    Filed: December 17, 2007
    Date of Patent: November 23, 2010
    Assignee: Ciena Corporation
    Inventors: Stacey Felkar, Frederic Perras, Ken Young, Chris Barrett
  • Publication number: 20100182904
    Abstract: A method for managing data packets passing through an Ethernet node having multiple ingress ports and multiple egress ports, the ingress ports receiving the data packets from at least one service, and the egress ports configured with at least one Logical Transport Resource (LTR) configured as a predefined path between one of the egress ports and a destination in the Ethernet network. The method comprises mapping one or more of the services to each of the at least one LTR, shaping each of the at least one LTR to a configured rate, and transmitting data packets to the Ethernet network via the egress ports.
    Type: Application
    Filed: January 22, 2009
    Publication date: July 22, 2010
    Applicant: Gridpoint Systems Inc.
    Inventors: James D. Arseneault, Chris Barrett, Allan Beaudette, Nicholas J. Cadwgan, Pablo Frank, Natalie Giroux, Frederic Perras, Brian R. Smith, Kenneth W. Young
  • Publication number: 20090154364
    Abstract: A method of fault notification in a carrier Ethernet having the capability of generating and transmitting OAM packets having flag fields, comprises inserting a bit in one of the flag fields to indicate the presence of service-affecting information in the OAM packets, detecting the presence of the inserted bit at the end of a data path, and performing a service protection action in response to the detection of the inserted bit prior to parsing the information in the message. One type of service protection action is protection switching.
    Type: Application
    Filed: December 17, 2007
    Publication date: June 18, 2009
    Inventors: Stacey Felkar, Frederic Perras, Ken Young, Chris Barrett