公开(公告)号：US11740201B2

公开(公告)日：2023-08-29

申请号：US17163710

申请日：2021-02-01

申请人： MSA TECHNOLOGY, LLC

发明人： Towner Bennett Scheffler ,  Michael Alvin Brown ,  Brian Keith Davis

IPC分类号： G01N27/404 ,  G01N27/26 ,  G01N33/00 ,  G01N33/497 ,  G01N27/417

CPC分类号： G01N27/26 ,  G01N27/4175 ,  G01N33/007 ,  G01N33/497 ,  Y10T29/49826

摘要： A system includes a system housing including an inlet, at least one gas sensor responsive to a first analyte gas other than oxygen within the system housing and in fluid connection with the inlet, and a sensor responsive to oxygen within the system housing and in fluid connection with the inlet. The sensor responsive to oxygen is formed to be chemically separate from the at least one gas sensor responsive to the first analyte gas other than oxygen. The sensor responsive to oxygen is responsive to a change in the concentration of oxygen arising from creation of a driving force in the vicinity of the inlet to provide an indication of a state of a transport path between the inlet of the system and the at least one gas sensor responsive to the first analyte gas other than oxygen.

公开(公告)号：US11739421B2

公开(公告)日：2023-08-29

申请号：US16951496

申请日：2020-11-18

申请人： University of Pittsburgh—Of the Commonwealth System of Higher Education

发明人： Haitao Liu ,  Feng Zhou

IPC分类号： C01B32/90 ,  C23C16/455 ,  C23C16/40 ,  C23C18/12

CPC分类号： C23C16/45525 ,  C01B32/90 ,  C23C16/403 ,  C23C18/1283 ,  C01P2002/82 ,  C01P2004/04

摘要： A carbonized composition is formed by a process including providing an organic composition formed into a predetermined configuration, forming a protective layer over the organic composition, increasing temperature to carbonize the organic composition and form the carbonized composition, and removing the protective layer from the carbonized composition, wherein the carbonized composition has substantially the predetermined configuration. In a number of embodiments, the organic composition includes a nucleic acid. In a number of embodiments, the organic composition consists of a nucleic acid. The nucleic acid may, for example, be DNA.

公开(公告)号：US11564854B2

公开(公告)日：2023-01-31

申请号：US17259173

申请日：2019-07-11

申请人： University of Pittsburgh—Of the Commonwealth System of Higher Education ,  The United States Government as represented by the Department of Veterans Affairs

发明人： Rory Alan Cooper ,  Chengshiu Chung ,  Garrett G. Grindle ,  Rosemarie Cooper ,  Sathish Andrea Sundaram

IPC分类号： A61G5/00 ,  A61G5/10 ,  A61G5/12 ,  G16H20/30 ,  G16H50/30 ,  G16H40/63

摘要： A wheelchair system includes a wheelchair including a plurality of force sensors including at least three force sensors. A rigid seat pan is placed in contact with each the plurality of force sensors at a different position on the rigid seat pan so that the rigid seat pan does not contact the frame and forces on the rigid seat pan are transferred to the plurality of force sensors. Each of the plurality of force sensors is in communicative connection with a processor system. A memory system is in communicative connection and an interface system is in connection with the processor system and a user interface system in communicative connection with the processor system. Instructions stored on the memory system are executable by the processor system to determine a value of a variable related to a distribution of force on the rigid seat pan over time.

公开(公告)号：US11543396B2

公开(公告)日：2023-01-03

申请号：US16437487

申请日：2019-06-11

申请人： MSA TECHNOLOGY, LLC

发明人： Meghan E. Swanson ,  Daniel D. Santoro, Jr. ,  Michael Alvin Brown ,  Mark Flori Zanella, Sr. ,  Christopher S. Detka

IPC分类号： G01N33/00 ,  G01N27/16 ,  G01N27/404

摘要： A system for detecting an analyte gas in an environment includes a first gas sensor, a first contaminant sensor separate and spaced from the first gas sensor, and electronic circuitry in electrical connection with the first gas sensor to determine if the analyte gas is present based on a response of the first gas sensor. The electronic circuitry is further in electrical connection with the first contaminant sensor to measure a response of the first contaminant sensor over time. The measured response of the first contaminant sensor varies with an amount of one or more contaminants to which the system has been exposed in the environment over time.

公开(公告)号：US11231387B2

公开(公告)日：2022-01-25

申请号：US15879138

申请日：2018-01-24

申请人： MSA Europe GmbH

发明人： Sebastian Ross ,  Kathrin Tölle ,  Brian Keith Davis

IPC分类号： G01N27/406 ,  G01N27/416 ,  G01N27/407 ,  G01N27/404

摘要： An electrochemical gas sensor includes a housing comprising a gas inlet, an electrolyte within the housing, a working electrode in ionic contact with the electrolyte, a counter electrode in ionic contact with the electrolyte and a secondary electrode in ionic contact with the electrolyte. Reaction of target gas at the secondary electrode is less than reaction of target gas at the working electrode. Electronic circuitry of the gas sensor is configured to measure an output from the working electrode and an output from the at least one secondary electrode. A correction factor is determined for correcting the output from the working electrode on the basis of the working electrode output and the secondary electrode output during an assessment in which the electrochemical sensor is exposed to the target gas for a determined period of time.

公开(公告)号：US10961557B2

公开(公告)日：2021-03-30

申请号：US16720924

申请日：2019-12-19

申请人： University of Pittsburgh—Of the Commonwealth System of Higher Education ,  Duquesne University of the Holy Spirit

发明人： John Alston Kellum ,  John D. Hempel ,  Robert Hugh Edgar ,  John Andrew Viator

IPC分类号： C12Q1/04 ,  G01N29/24 ,  G01N15/10 ,  C12N7/00 ,  C12N7/02

摘要： A system for identifying at least one species, strain or type of bacteria in a sample including at least one a labeled bacteriophage which binds selectively to the species, strain or type of bacteria, the at least one labeled bacteriophage comprising a label attached thereto, the system further comprising a detection system adapted to detect the labeled bacteriophage bound to the species of bacteria.

公开(公告)号：US10934477B2

公开(公告)日：2021-03-02

申请号：US16448477

申请日：2019-06-21

申请人： University of Pittsburgh—Of the Commonwealth System of Higher Education

发明人： Matthew M. Kropf

IPC分类号： E21B43/267 ,  C09K8/80 ,  E21B41/00

摘要： A proppant for use in hydraulic fracturing in a subterranean formation to prop a fracture therein includes a material which is adapted to sequester at least one target species formed external to the subterranean formation and formed external to the proppant and the material.

公开(公告)号：US10934383B2

公开(公告)日：2021-03-02

申请号：US16072605

申请日：2017-01-24

申请人： CARNEGIE MELLON UNIVERSITY

发明人： Michael R. Bockstaller ,  Amir Khabibullin ,  Zongyu Wang ,  Hangjun Ding ,  Guojun Xie ,  Krzysztof Matyjaszewski ,  Jiajun Yan ,  Zhao Lu

IPC分类号： C08K3/22 ,  C08K3/36 ,  C08F292/00 ,  C08F293/00 ,  C08L39/00 ,  C08L35/00 ,  H01L33/56 ,  C08L83/04 ,  H01L33/64

摘要： A composition formed by dispersing at least a plurality of first particles within a matrix material and dispersing at least a plurality of second particles within the matrix material, the second particles being different from the first particles, wherein interaction between the at least a plurality of second particles and the at least a plurality of first particles determines a spatial distribution of the plurality of second particles within the matrix material.

公开(公告)号：US10934188B2

公开(公告)日：2021-03-02

申请号：US15265190

申请日：2016-09-14

申请人： University of Pittsburgh—Of the Commonwealth System of Higher Education

发明人： Radisav D. Vidic

IPC分类号： C09K8/62 ,  C02F1/52 ,  C09K8/66 ,  C02F103/10 ,  C02F101/00 ,  C02F1/00 ,  C02F101/10 ,  C02F1/66

摘要： A method of treating produced water from subterranean operations includes charging produced water into a container to create a mixture of the produced water and an aqueous medium including a source of sulfate ions within the container, removing an outflow via an outlet in the container; and charging barite particles into the container.

公开(公告)号：US10908111B2

公开(公告)日：2021-02-02

申请号：US13796652

申请日：2013-03-12

申请人： Towner B. Scheffler ,  Michael A. Brown ,  Brian Keith Davis

发明人： Towner B. Scheffler ,  Michael A. Brown ,  Brian Keith Davis

IPC分类号： G01N27/417 ,  G01N27/26 ,  G01N33/00 ,  G01N33/497

摘要： A system includes a system housing including an inlet, at least one gas sensor responsive to a first analyte gas other than oxygen within the system housing and in fluid connection with the inlet, and a sensor responsive to oxygen within the system housing and in fluid connection with the inlet. The sensor responsive to oxygen is formed to be chemically separate from the at least one gas sensor responsive to the first analyte gas other than oxygen. The sensor responsive to oxygen is responsive to a change in the concentration of oxygen arising from creation of a driving force in the vicinity of the inlet to provide an indication of a state of a transport path between the inlet of the system and the at least one gas sensor responsive to the first analyte gas other than oxygen.