Patents by Inventor C. Welch

C. Welch 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: 20240357841
    Abstract: Multilayer organic electronic devices having an electron transport layer (ETL). The ETL is a film comprising an N-annulated perylene diimide (NPDI) compound having at least one pyrrole N—H bond and at least 1 equivalent of Cs2CO3 with respect to the NPDI compound and the number of pyrrolic N—H bonds in the NPDI compound. The ETL is positioned between the photoactive layer and the top electrode (cathode). Multilayer devices including the ETL are fabricated employing immiscible solvent methods. A method for making the ETL layers is provided which employs an ink formulation in which the NPDI compound is solubilized in a selected polar solvent by addition of at least one equivalent of Cs2CO3 respect to the NPDI compound. Exemplary polar solvents include ethanol, 1-propanol, ethyl acetate and mixtures thereof.
    Type: Application
    Filed: August 20, 2022
    Publication date: October 24, 2024
    Inventors: Mahmoud Elsayed FARHAT, Gregory C. WELCH
  • Patent number: 11844985
    Abstract: A touch-free solar powered golf ball washer (1) includes a housing (4) a conduit having an inlet (7), a porous conduit section (6) containing brushes (2) immersed in a cleaning fluid solution (9), an air blowing motor (3), the motor configured to blow air through an air flow tube (20) into the conduit porous section (6) and a non-porous conduit section (15) at through which a golf ball passes on its way to an outlet (8). The washer motor is preferably powered by a solar power circuit (10) in electrical communication with a solar panel (11). The motor can be activated by waiving one's hands proximate a touch-free activator panel (17) on the housing of the washer.
    Type: Grant
    Filed: July 29, 2021
    Date of Patent: December 19, 2023
    Inventor: Sean C. Welch
  • Publication number: 20230403925
    Abstract: Organic photovoltaics (OPVs) based on a slot-die coated ternary blends for low-intensity light harvesting are disclosed herein. The ternary blends comprise either a N-annulated perylene diimide-based electron acceptor material or an aalkyl-12,13-dihydro[1,2,5] thiadiazolo[3,4e]thieno[2?,3?:4?,5] thieno[2?,3?:4,5] pyrrolo[3,2-g] thieno [2?,3?:4,5]thieno [3,2-b]indole-2,10-diyl)bis(methanylylidene)) bis(3-oxo-2,3-dihydro1Hindene-2,1-diylidene))dimalononitrile) (BTP)-based electron acceptor material, a second acceptor material, and an electron donor material which comprises poly[(2,5-bis(2-hexyldecyloxy) phenylene)-alt-(5,6-difluoro-4,7-di(thiophen-2-yl)benzo[c] [1,2,5]thiadiazole)] (PPDT2FBT). In an aspect, a N-annulated perylene diimide dimer (tPDI2N-EH, PDI) acceptor material was incorporated into a blend of donor polymer material (PPDT2FBT) and fullerene acceptor [6,6]-phenyl-C61-butyric acid methyl ester (PC61BM) material to give ternary bulk heterojunction (BHJ) blends.
    Type: Application
    Filed: September 16, 2021
    Publication date: December 14, 2023
    Inventors: Gregory C. WELCH, Mahmoud E. FARAHAT, Sergey V. DAYNEKO
  • Publication number: 20230189637
    Abstract: Thin films of organic semiconducting material comprising perylene diimide small molecules with pyrrolic N—H bonds. Films are prepared using green solvents including water and alcohols. The films can be solvent-resistant and generally range in thickness from 10 to 1000 nm. Perylene diimide molecules are dissolved in solvent by addition of a base to polarize the pyrrolic N—H bond believed to generate an ionic salt in alcohol or aqueous solution. Devices containing such films are provided. Methods of making films and methods of using films in OPV device applications and in amine sensors are provided.
    Type: Application
    Filed: April 30, 2021
    Publication date: June 15, 2023
    Inventors: Cayley HARDING, Gregory C. WELCH
  • Publication number: 20230031330
    Abstract: A touch-free solar powered golf ball washer (1) includes a housing (4) a conduit having an inlet (7), a porous conduit section (6) containing brushes (2) immersed in a cleaning fluid solution (9), an air blowing motor (3), the motor configured to blow air through an air flow tube (20) into the conduit porous section (6) and a non-porous conduit section (15) at through which a golf ball passes on its way to an outlet (8). The washer motor is preferably powered by a solar power circuit (10) in electrical communication with a solar panel (11). The motor can be activated by waiving one's hands proximate a touch-free activator panel (17) on the housing of the washer.
    Type: Application
    Filed: July 29, 2021
    Publication date: February 2, 2023
    Inventor: Sean C. Welch
  • Patent number: 10981936
    Abstract: Oligomeric compounds useful as organic conjugated materials in electronic devices. Oligomeric compounds contain three or more or four or more of certain PDI units bonded to an organic core. The organic core contains one, two or more thiophene rings. The organic core can contain two or more thiophene rings separated by a linker group; two or more thiophene rings directly fused to each other or indirectly fused to each other through an optionally substituted aromatic or non-aromatic carbocylic ring system or an optionally substituted aromatic heterocyclic or non-aromatic heterocyclic ring system; or each of two or more thiophene rings is fused to an aromatic or non-aromatic carbocylic ring system or an aromatic heterocyclic or non-aromatic heterocyclic ring system and the resulting fused rings containing a thiophene ring are each separated by a linker group M. Methods for making oligomeric compounds by direct heteroarylation are provided.
    Type: Grant
    Filed: May 5, 2020
    Date of Patent: April 20, 2021
    Assignee: UTI Limited Partnership
    Inventors: Abby-Jo Payne, Gregory C. Welch
  • Patent number: 10907089
    Abstract: A method of stabilizing one or more clays within a subterranean formation comprises forming at least one treatment fluid comprising anionic silica particles, cationic silica particles, and at least one base material. The at least one treatment fluid is provided into a subterranean formation containing clay particles to attach at least a portion of the anionic silica particles and the cationic silica particles to surfaces of the clay particles and form stabilized clay particles. A method of treating one or more clays contained within a subterranean formation, and a treatment fluid for a subterranean formation.
    Type: Grant
    Filed: February 26, 2018
    Date of Patent: February 2, 2021
    Assignee: Baker Hughes Holdings LLC
    Inventors: Devesh Kumar Agrawal, Radhika Suresh, Oleksandr V. Kuznetsov, Valery N. Khabashesku, John C. Welch
  • Patent number: 10892421
    Abstract: Small organic molecule semi-conducting chromophores containing a pyridalthiadiazole, pyridaloxadiazole, or pyridaltriazole core structure are disclosed. Such compounds can be used in organic heterojunction devices, such as organic small molecule solar cells and transistors.
    Type: Grant
    Filed: February 8, 2018
    Date of Patent: January 12, 2021
    Assignee: The Regents of the University of California
    Inventors: Gregory C. Welch, Corey V. Hoven, Thuc-Quyen Nguyen, Guillermo C. Bazan
  • Patent number: 10851611
    Abstract: A hybrid article comprises a disintegrable metal comprising one or more of the following: Mg; Al; Zn; Mn; an alloy thereof; or a composite thereof; and a disintegrable polymer comprising one or more of the following: an epoxy polymer derived from an epoxy base and a curing agent having cleavable bonds; a cured cyanate ester; or a poly(hexahydrotriazine).
    Type: Grant
    Filed: March 23, 2017
    Date of Patent: December 1, 2020
    Assignee: BAKER HUGHES, A GE COMPANY, LLC
    Inventors: Suman Khatiwada, John C. Welch, Anil K. Sadana, Sayantan Roy
  • Patent number: 10807355
    Abstract: A method of manufacturing an article comprises depositing a metallic powder on a substrate or a worktable; fusing the metallic powder according to a preset pattern; and adjusting a composition of the metallic powder or a condition to fuse the metallic powder or a combination thereof to additively form an article such that the article has a first portion and a second portion, wherein the first portion has one or more of the following properties different than those of the second portion: corrosion rate; tensile strength; compressive strength; modulus; or hardness.
    Type: Grant
    Filed: June 18, 2018
    Date of Patent: October 20, 2020
    Assignee: BAKER HUGHES, A GE COMPANY, LLC
    Inventors: John C. Welch, Zhiyue Xu, James Andy Oxford
  • Publication number: 20200262846
    Abstract: Oligomeric compounds useful as organic conjugated materials in electronic devices. Oligomeric compounds contain three or more or four or more of certain PDI units bonded to an organic core. The organic core contains one, two or more thiophene rings. The organic core can contain two or more thiophene rings separated by a linker group; two or more thiophene rings directly fused to each other or indirectly fused to each other through an optionally substituted aromatic or non-aromatic carbocylic ring system or an optionally substituted aromatic heterocyclic or non-aromatic heterocyclic ring system; or each of two or more thiophene rings is fused to an aromatic or non-aromatic carbocylic ring system or an aromatic heterocyclic or non-aromatic heterocyclic ring system and the resulting fused rings containing a thiophene ring are each separated by a linker group M. Methods for making oligomeric compounds by direct heteroarylation are provided.
    Type: Application
    Filed: May 5, 2020
    Publication date: August 20, 2020
    Inventors: Abby-Jo PAYNE, Gregory C. WELCH
  • Patent number: 10647732
    Abstract: PDI derivatives useful as opto-electronically active materials or for the synthesis of such materials. Certain compounds herein function as efficient electron acceptors and are useful as electron active components of electronic devices.
    Type: Grant
    Filed: January 9, 2018
    Date of Patent: May 12, 2020
    Assignee: UTI Limited Partnership
    Inventors: Gregory C. Welch, Arthur D. Hendsbee
  • Patent number: 10644242
    Abstract: Oligomeric compounds useful as organic conjugated materials in electronic devices. Oligomeric compounds contain three or more or four or more of certain PDI units bonded to an organic core. The organic core contains one, two or more thiophene rings. The organic core can contain two or more thiophene rings separated by a linker group; two or more thiophene rings directly fused to each other or indirectly fused to each other through an optionally substituted aromatic or non-aromatic carbocylic ring system or an optionally substituted aromatic heterocyclic or non-aromatic heterocyclic ring system; or each of two or more thiophene rings is fused to an aromatic or non-aromatic carbocylic ring system or an aromatic heterocyclic or non-aromatic heterocyclic ring system and the resulting fused rings containing a thiophene ring are each separated by a linker group M. Methods for making oligomeric compounds by direct heteroarylation are provided.
    Type: Grant
    Filed: September 6, 2019
    Date of Patent: May 5, 2020
    Assignee: UTI Limited Partnership
    Inventors: Abby-Jo Payne, Gregory C. Welch
  • Publication number: 20200083457
    Abstract: Oligomeric compounds useful as organic conjugated materials in electronic devices. Oligomeric compounds contain three or more or four or more of certain PDI units bonded to an organic core. The organic core contains one, two or more thiophene rings. The organic core can contain two or more thiophene rings separated by a linker group; two or more thiophene rings directly fused to each other or indirectly fused to each other through an optionally substituted aromatic or non-aromatic carbocylic ring system or an optionally substituted aromatic heterocyclic or non-aromatic heterocyclic ring system; or each of two or more thiophene rings is fused to an aromatic or non-aromatic carbocylic ring system or an aromatic heterocyclic or non-aromatic heterocyclic ring system and the resulting fused rings containing a thiophene ring are each separated by a linker group M. Methods for making oligomeric compounds by direct heteroarylation are provided.
    Type: Application
    Filed: September 6, 2019
    Publication date: March 12, 2020
    Inventors: Abby-Jo PAYNE, Gregory C. WELCH
  • Patent number: 10531267
    Abstract: A personal safety network (PSN) is provided in which authorized members of the network may rapidly and efficiently communicate with each other regarding threats, emergencies, or other circumstances. The PSN provides virtually real-time, multi-way messages among at least the members of a predetermined group of authorized members of the PSN. The PSN may integrate sensor data from security devices such as cameras, badge readers, and smart locks, with messages created by authorized members. The PSN may also include a location data database for maintaining virtually real-time location information for authorized members. Messages may be composed using speech recognition as an alternative to typing. A system administrator may provide temporary access to first responders or other authorized entities to message threads and underlying messages maintained by the PSN. Pre-processing and de-duplication methods are disclosed for managing congestion during periods when a large number of messages are received by the PSN.
    Type: Grant
    Filed: May 20, 2019
    Date of Patent: January 7, 2020
    Assignee: Mooseworks Development, LLC
    Inventors: Cynthia Goodenough Welch, Keith C. Welch
  • Publication number: 20190373437
    Abstract: A personal safety network (PSN) is provided in which authorized members of the network may rapidly and efficiently communicate with each other regarding threats, emergencies, or other circumstances. The PSN provides virtually real-time, multi-way messages among at least the members of a predetermined group of authorized members of the PSN. The PSN may integrate sensor data from security devices such as cameras, badge readers, and smart locks, with messages created by authorized members. The PSN may also include a location data database for maintaining virtually real-time location information for authorized members. Messages may be composed using speech recognition as an alternative to typing. A system administrator may provide temporary access to first responders or other authorized entities to message threads and underlying messages maintained by the PSN. Pre-processing and de-duplication methods are disclosed for managing congestion during periods when a large number of messages are received by the PSN.
    Type: Application
    Filed: May 20, 2019
    Publication date: December 5, 2019
    Inventors: Cynthia Goodenough Welch, Keith C. Welch
  • Patent number: 10396286
    Abstract: A method of regioselectively preparing a pyridine-containing compound is provided. In particular embodiments, the method includes reacting halogen-functionalized pyridal[2,1,3]thiadiazole with organotin-functionalized cyclopenta[2,1-b:3,4-b?]dithiophene or organotin-functionalized indaceno[2,1-b:3,4-b?]dithiophene. Also provided is a method of preparing a polymer. The method includes regioselectively preparing a monomer that includes a pyridal[2,1,3]thiadiazole unit; and reacting the monomer to produce a polymer that includes a regioregular conjugated backbone section, wherein the section includes a repeat unit containing the pyridal[2,1,3]thiadiazole unit. A polymer that includes a regioregular conjugated backbone section, and electronic devices that include the polymer, are also provided.
    Type: Grant
    Filed: November 22, 2013
    Date of Patent: August 27, 2019
    Assignee: The Regents of the University of California
    Inventors: Guillermo C. Bazan, Lei Ying, Ben B. Y. Hsu, Wen Wen, Hsin-Rong Tseng, Gregory C. Welch
  • Patent number: 10375560
    Abstract: A personal safety network (PSN) is provided in which authorized members of the network may rapidly and efficiently communicate with each other regarding threats, emergencies, or other circumstances. The PSN typically includes mobile devices, such as smartphones or tablets, on which a mobile application is running, an administrative server, and a push notification server. The mobile devices, administrative server, and push notification server cooperate to enable distribution of virtually real-time, multi-way messages among at least the members of a predetermined group of authorized members of the PSN. In addition, multiple PSNs may be linked together to effectively provide a single network for a large geographic area or remotely located, commonly owned or operated facilities.
    Type: Grant
    Filed: June 1, 2018
    Date of Patent: August 6, 2019
    Assignee: Mooseworks Development, LLC
    Inventors: Cynthia Goodenough Welch, Keith C. Welch
  • Patent number: 10352133
    Abstract: A downhole article comprises a polymer substrate having a surface that is configured for exposure to a well fluid; the substrate comprising a thermoplastic material, an elastomer, or a combination comprising at least one of the foregoing; and a coating disposed on the surface of the polymer substrate; the coating comprising a fluorinated poly-para-xylylene.
    Type: Grant
    Filed: November 4, 2015
    Date of Patent: July 16, 2019
    Assignee: BAKER HUGHES, A GE COMPANY, LLC
    Inventors: Anil Sadana, Vipul Mathur, James Edward Goodson, John C. Welch
  • Publication number: 20190211035
    Abstract: PDI derivatives useful as opto-electronically active materials or for the synthesis of such materials. Certain compounds herein function as efficient electron acceptors and are useful as electron active components of electronic devices.
    Type: Application
    Filed: January 9, 2018
    Publication date: July 11, 2019
    Inventors: Gregory C. WELCH, Arthur D. HENDSBEE