Patents by Inventor Carlos A. Valdez

Carlos A. Valdez 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: 12330144
    Abstract: A method of forming a chemically reactive membrane includes applying a first solution to a structure, the first solution includes a macrocyclic ligand having electron-donating ligands and a side functional group for crosslinking, crosslinking a plurality of the macrocyclic ligand to form a first network of crosslinked macrocyclic ligands, and applying a second solution to the structure, the second solution comprising a catalytic center. Each catalytic center complexes with the electron-donating ligands of each macrocyclic ligand to form catalytic sites in the first network of crosslinked macrocyclic ligands.
    Type: Grant
    Filed: August 23, 2023
    Date of Patent: June 17, 2025
    Assignee: Lawrence Livermore National Security, LLC
    Inventors: Francesco Fornasiero, Edmond Y. Lau, Carlos A. Valdez
  • Publication number: 20250155458
    Abstract: A method for detecting a suspected target molecule includes obtaining a reaction mixture that is not reactive at ambient temperature, the reaction mixture comprising at least two reactants, adding the suspected target molecule to the reaction mixture for causing a reaction involving the reactants in the reaction mixture, and detecting presence of a product formed from the reactants in response to the addition of the suspected target molecule. The suspected target molecule acts as a catalyst for the reaction, where the suspected target molecule includes a tertiary amine.
    Type: Application
    Filed: November 10, 2023
    Publication date: May 15, 2025
    Inventors: Carlos A. Valdez, Mark Miles Hart, Mathew Gerald Lyman
  • Patent number: 12071831
    Abstract: A tool and method for selectively allowing a transmission of torque to a casing string at a position below installation of the tool along the casing string. The tool includes an upper body to engage with an upper portion of a casing string, a lower body to engage with a lower portion of a casing string, and a swivel assembly connecting the upper body to the lower body, the swivel assembly is to operate in multiple configurations such that the upper body and the lower body are selectively locked together to allow or prevent torque transmission through the tool from the upper portion of the casing string to the lower portion of the casing string.
    Type: Grant
    Filed: December 11, 2023
    Date of Patent: August 27, 2024
    Inventors: Henry E Rogers, Carlos A Valdez, Gary J Makowiecki
  • Publication number: 20240033720
    Abstract: A method of forming a chemically reactive membrane includes applying a first solution to a structure, the first solution includes a macrocyclic ligand having electron-donating ligands and a side functional group for crosslinking, crosslinking a plurality of the macrocyclic ligand to form a first network of crosslinked macrocyclic ligands, and applying a second solution to the structure, the second solution comprising a catalytic center. Each catalytic center complexes with the electron-donating ligands of each macrocyclic ligand to form catalytic sites in the first network of crosslinked macrocyclic ligands.
    Type: Application
    Filed: August 23, 2023
    Publication date: February 1, 2024
    Inventors: Francesco Fornasiero, Edmond Y. Lau, Carlos A. Valdez
  • Patent number: 11772087
    Abstract: A membrane includes a first layer, and a second layer coupled to the first layer. The second layer includes a network of catalytic sites, each catalytic site having a catalytic center characterized by promoting a chemical reaction of a target material. A method of forming a chemically reactive membrane includes applying a first solution to a structure, the first solution includes a macrocyclic ligand having electron-donating ligands and a side functional group for crosslinking, crosslinking a plurality of the macrocyclic ligand to form a first network of crosslinked macrocyclic ligands, and applying a second solution to the structure, the second solution comprising a catalytic center. Each catalytic center complexes with the electron-donating ligands of each macrocyclic ligand to form catalytic sites in the first network of crosslinked macrocyclic ligands.
    Type: Grant
    Filed: September 1, 2020
    Date of Patent: October 3, 2023
    Assignee: Lawrence Livermore National Security, LLC
    Inventors: Francesco Fornasiero, Edmond Y. Lau, Carlos A. Valdez
  • Publication number: 20220062885
    Abstract: A membrane includes a first layer, and a second layer coupled to the first layer. The second layer includes a network of catalytic sites, each catalytic site having a catalytic center characterized by promoting a chemical reaction of a target material. A method of forming a chemically reactive membrane includes applying a first solution to a structure, the first solution includes a macrocyclic ligand having electron-donating ligands and a side functional group for crosslinking, crosslinking a plurality of the macrocyclic ligand to form a first network of crosslinked macrocyclic ligands, and applying a second solution to the structure, the second solution comprising a catalytic center. Each catalytic center complexes with the electron-donating ligands of each macrocyclic ligand to form catalytic sites in the first network of crosslinked macrocyclic ligands.
    Type: Application
    Filed: September 1, 2020
    Publication date: March 3, 2022
    Inventors: Francesco Fornasiero, Edmond Y. Lau, Carlos A. Valdez
  • Publication number: 20210403421
    Abstract: Biodegradable surfactants are described, in which an amphiphilic heteroatom containing hydrocarbon optionally comprising at least one counterion (Z), and related compositions, methods and systems. Biodegradable surfactant described herein has an aHLB value in accordance with equation (1): aHLB=20*Gh/(Gh?Gt) (1) wherein Gh is the Group Number of a hydrophilic head portion of the biodegradable surfactant optionally comprising the at least one counterion (Z), and Gt is the Group Number of a hydrophobic tail portion of the biodegradable surfactant. A biodegradable surfactant in the sense of the disclosure can be tuned to a set hydrophilic-lipophilic balance (aHLB) by selectively modifying at least one tuning moiety of the biodegradable surfactants to provide tuned biodegradable surfactants having an increase or decrease in their adjusted hydrophilic-lipophilic balance (aHLB).
    Type: Application
    Filed: June 17, 2021
    Publication date: December 30, 2021
    Inventors: Mathew Gerald LYMAN, Lawrence DUGAN, Roald N. LEIF, Bonnee RUBINFELD, Brian E. SOUZA, Carlos A. VALDEZ
  • Patent number: 11186548
    Abstract: Described herein are oxime compounds capable of inactivating OP-based AChE inhibitors, crossing the blood brain barrier (BBB), and/or reactivation of OP-inhibited acetylcholinesterase (AChE) and related methods, systems and compositions for inactivation of one or more OP-based AChE inhibitors, therapeutic and/or prophylactic treatment of an individual, and/or decomposition of OP-based AChE inhibitors for decontamination.
    Type: Grant
    Filed: November 21, 2018
    Date of Patent: November 30, 2021
    Assignee: LAWRENCE LIVERMORE NATIONAL SECURITY, LLC
    Inventors: Carlos A. Valdez, Nicholas A. Be, Michael A. Malfatti, Heather Ann Enright, Brian J. Bennion, Timothy S. Carpenter, Saphon Hok, Hio Leong Lao, Tuan H. Nguyen
  • Patent number: 11066359
    Abstract: Biodegradable surfactants are described, in which an amphiphilic heteroatom containing hydrocarbon optionally comprising at least one counterion (Z), and related compositions, methods and systems. Biodegradable surfactant described herein has an aHLB value in accordance with equation (1): aHLB=20*Gh/(Gh?Gt) (1) wherein Gh is the Group Number of a hydrophilic head portion of the biodegradable surfactant optionally comprising the at least one counterion (Z), and Gt is the Group Number of a hydrophobic tail portion of the biodegradable surfactant. A biodegradable surfactant in the sense of the disclosure can be tuned to a set hydrophilic-lipophilic balance (aHLB) by selectively modifying at least one tuning moiety of the biodegradable surfactants to provide tuned biodegradable surfactants having an increase or decrease in their adjusted hydrophilic-lipophilic balance (aHLB).
    Type: Grant
    Filed: February 8, 2018
    Date of Patent: July 20, 2021
    Assignee: LAWRENCE LIVERMORE NATIONAL SECURITY, LLC
    Inventors: Mathew Gerald Lyman, Lawrence Dugan, Roald N. Leif, Bonnee Rubinfeld, Brian E. Souza, Carlos A. Valdez
  • Patent number: 10717713
    Abstract: Novel compositions of matter based on homopiperazine precursor materials and forming a homopiperazine-based ligand are disclosed, along with suitable techniques and materials for the synthesis and utilization thereof. In particular various synthetic schemes and techniques for applying the disclosed compositions of matter as a decontaminating agent. The decontaminating agents include homopiperazine-based ligand-metal complexes that are particularly effective at neutralizing toxicity of nerve agents, pesticides, and other toxic organophosphorus-based compounds. In preferred approaches, the homopiperazine-based ligand-metal complexes act as catalysts to facilitate substitution of a leaving group of the organophosphorus-based compound with a functional group that does not permit the organophosphorus-based compound to inactivate acetylcholinesterase upon introduction of the organophosphorus-based compound to a living organism such as insects and mammals.
    Type: Grant
    Filed: September 19, 2018
    Date of Patent: July 21, 2020
    Assignee: Lawrence Livermore National Security, LLC
    Inventors: Carlos A. Valdez, Edmond Y. Lau, Brian P. Mayer
  • Patent number: 10590498
    Abstract: Described herein are oxime compounds capable of inactivating a nerve agent, blood brain barrier (BBB)-penetration, and/or reactivation of nerve agent-inhibited acetylcholinesterase (AChE) and related methods, systems and compositions for inactivation of one or more nerve agents, therapeutic and/or prophylactic treatment of an individual, and/or decomposition of nerve agent for decontamination.
    Type: Grant
    Filed: May 15, 2017
    Date of Patent: March 17, 2020
    Assignee: Lawrence Livermore National Security, LLC
    Inventors: Carlos A. Valdez, Nicholas A. Be, Brian Bennion, Tim Carpenter, Heather Ann Enright, Felice Lightstone, Mike Malfatti, Margaret Windy McNerney, Tuan H. Nguyen
  • Publication number: 20190359562
    Abstract: Biodegradable surfactants are described, in which an amphiphilic heteroatom containing hydrocarbon optionally comprising at least one counterion (Z), and related compositions, methods and systems. Biodegradable surfactant described herein has an aHLB value in accordance with equation (1): aHLB=20*Gh/(Gh?Gt) (1) wherein Gh is the Group Number of a hydrophilic head portion of the biodegradable surfactant optionally comprising the at least one counterion (Z), and Gt is the Group Number of a hydrophobic tail portion of the biodegradable surfactant. A biodegradable surfactant in the sense of the disclosure can be tuned to a set hydrophilic-lipophilic balance (aHLB) by selectively modifying at least one tuning moiety of the biodegradable surfactants to provide tuned biodegradable surfactants having an increase or decrease in their adjusted hydrophilic-lipophilic balance (aHLB).
    Type: Application
    Filed: February 8, 2018
    Publication date: November 28, 2019
    Inventors: Mathew Gerald LYMAN, Lawrence DUGAN, Roald N. LEIF, Bonnee RUBINFELD, Brian E. SOUZA, Carlos A. VALDEZ
  • Patent number: 10442871
    Abstract: Novel thioalkylcarboxylate-modified CDs and pharmaceutical compositions comprising these thioalkylcarboxylate-modified CDs are disclosed, as well as methods of using the disclosed thioalkylcarboxylate-modified CDs and pharmaceutical compositions thereof to neutralize or reduce undesired effects or symptoms associated with one or more fentanyl related compounds in a subject in need thereof. The use of the disclosed thioalkylcarboxylate-modified CDs to detect the presence of one or more fentanyl related compounds in a sample is also disclosed, which comprises contacting the sample with said thioalkylcarboxylate-modified CDs or a composition comprising these CDs.
    Type: Grant
    Filed: June 22, 2017
    Date of Patent: October 15, 2019
    Assignee: Lawrence Livermore National Security, LLC
    Inventors: Daniel Joseph Kennedy, Brian P. Mayer, Carlos A. Valdez
  • Publication number: 20190152920
    Abstract: Described herein are oxime compounds capable of inactivating OP-based AChE inhibitors, crossing the blood brain barrier (BBB), and/or reactivation of OP-inhibited acetylcholinesterase (AChE) and related methods, systems and compositions for inactivation of one or more OP-based AChE inhibitors, therapeutic and/or prophylactic treatment of an individual, and/or decomposition of OP-based AChE inhibitors for decontamination.
    Type: Application
    Filed: November 21, 2018
    Publication date: May 23, 2019
    Inventors: Carlos A. Valdez, Nicholas A. Be, Michael A. Malfatti, Heather Ann Enright, Brian J. Bennion, Timothy S. Carpenter, Saphon Hok, Hio leong Lao, Tuan H. Nguyen
  • Publication number: 20190040018
    Abstract: Novel compositions of matter based on homopiperazine precursor materials and forming a homopiperazine-based ligand are disclosed, along with suitable techniques and materials for the synthesis and utilization thereof. In particular various synthetic schemes and techniques for applying the disclosed compositions of matter as a decontaminating agent. The decontaminating agents include homopiperazine-based ligand-metal complexes that are particularly effective at neutralizing toxicity of nerve agents, pesticides, and other toxic organophosphorus-based compounds. In preferred approaches, the homopiperazine-based ligand-metal complexes act as catalysts to facilitate substitution of a leaving group of the organophosphorus-based compound with a functional group that does not permit the organophosphorus-based compound to inactivate acetylcholinesterase upon introduction of the organophosphorus-based compound to a living organism such as insects and mammals.
    Type: Application
    Filed: September 19, 2018
    Publication date: February 7, 2019
    Inventors: Carlos A. Valdez, Edmond Y. Lau, Brian P. Mayer
  • Publication number: 20180371110
    Abstract: Novel thioalkylcarboxylate-modified CDs and pharmaceutical compositions comprising these thioalkylcarboxylate-modified CDs are disclosed, as well as methods of using the disclosed thioalkylcarboxylate-modified CDs and pharmaceutical compositions thereof to neutralize or reduce undesired effects or symptoms associated with one or more fentanyl related compounds in a subject in need thereof. The use of the disclosed thioalkylcarboxylate-modified CDs to detect the presence of one or more fentanyl related compounds in a sample is also disclosed, which comprises contacting the sample with said thioalkylcarboxylate-modified CDs or a composition comprising these CDs.
    Type: Application
    Filed: June 22, 2017
    Publication date: December 27, 2018
    Inventors: Daniel Joseph KENNEDY, Brian P. MAYER, Carlos A. VALDEZ
  • Patent number: 10137324
    Abstract: In one embodiment, a method includes contacting a phosphotriester and a halogen salt in a polar solvent. In another embodiment, a method for dealkylating tributylphosphate includes contacting tributylphosphate and a halogen salt in a polar solvent.
    Type: Grant
    Filed: June 23, 2016
    Date of Patent: November 27, 2018
    Assignee: Lawrence Livermore National Security, LLC
    Inventors: Daniel J. Kennedy, Roald N. Leif, Brian P. Mayer, Carlos A. Valdez
  • Patent number: 10088491
    Abstract: Provided herein are methods for sequestering an alkyne-presenting molecule in a sample and related sequestration reagents, compositions, methods and systems.
    Type: Grant
    Filed: March 7, 2014
    Date of Patent: October 2, 2018
    Assignee: Lawrence Livermore National Security, LLC
    Inventors: Carlos A. Valdez, Alexander K. Vu
  • Patent number: 10082514
    Abstract: Provided herein are methods for selectively detecting an alkyne-presenting molecule in a sample and related detection reagents, compositions, methods and systems.
    Type: Grant
    Filed: March 7, 2014
    Date of Patent: September 25, 2018
    Assignee: Lawrence Livermore National Security, LLC
    Inventors: Carlos A. Valdez, Audrey M. Williams
  • Publication number: 20170335415
    Abstract: Described herein are oxime compounds capable of inactivating a nerve agent, blood brain barrier (BBB)-penetration, and/or reactivation of nerve agent-inhibited acetylcholinesterase (AChE) and related methods, systems and compositions for inactivation of one or more nerve agents, therapeutic and/or prophylactic treatment of an individual, and/or decomposition of nerve agent for decontamination.
    Type: Application
    Filed: May 15, 2017
    Publication date: November 23, 2017
    Inventors: Carlos A. VALDEZ, Nicholas A. BE, Brian BENNION, Tim CARPENTER, Heather Ann ENRIGHT, Felice LIGHTSTONE, Mike MALFATTI, Margaret Windy MCNERNEY, Tuan H. NGUYEN